diff --git a/main.js b/main.js
index f0c0639..91d83d6 100644
--- a/main.js
+++ b/main.js
@@ -20122,6 +20122,15 @@ var EN_MESSAGES = {
   "colorScheme.preview.swatch": "Color preview",
   "colorScheme.preview.targets": "Targets",
   "colorScheme.preview.empty": "No colors defined.",
+  // eslint-disable-next-line obsidianmd/ui/sentence-case-locale-module
+  "colorScheme.preview.blankColor": "(blank)",
+  // eslint-disable-next-line obsidianmd/ui/sentence-case-locale-module
+  "colorScheme.preview.unsupportedColor": "Unsupported color value; picking a color will replace it with #RRGGBB.",
+  "colorScheme.preview.pick": "Pick",
+  "colorScheme.preview.pickAria": "Pick {column} color",
+  "colorScheme.preview.pickApplied": "Color updated.",
+  "colorScheme.preview.pickFailed": "Could not update the color cell.",
+  "colorScheme.preview.pickUnchanged": "Color is already set.",
   "colorScheme.field.target": "Target",
   "colorScheme.field.kind": "Kind",
   "colorScheme.field.fill": "Fill",
@@ -20514,6 +20523,13 @@ var JA_MESSAGES = {
   "colorScheme.preview.swatch": "\u30AB\u30E9\u30FC\u78BA\u8A8D",
   "colorScheme.preview.targets": "\u5BFE\u8C61",
   "colorScheme.preview.empty": "Color \u306F\u5B9A\u7FA9\u3055\u308C\u3066\u3044\u307E\u305B\u3093\u3002",
+  "colorScheme.preview.blankColor": "\uFF08\u7A7A\uFF09",
+  "colorScheme.preview.unsupportedColor": "\u672A\u5BFE\u5FDC\u306E\u8272\u5024\u3067\u3059\u3002\u8272\u3092\u9078\u3076\u3068 #RRGGBB \u3067\u7F6E\u304D\u63DB\u3048\u307E\u3059\u3002",
+  "colorScheme.preview.pick": "\u9078\u629E",
+  "colorScheme.preview.pickAria": "{column} \u306E\u8272\u3092\u9078\u629E",
+  "colorScheme.preview.pickApplied": "\u8272\u3092\u66F4\u65B0\u3057\u307E\u3057\u305F\u3002",
+  "colorScheme.preview.pickFailed": "\u8272\u30BB\u30EB\u3092\u66F4\u65B0\u3067\u304D\u307E\u305B\u3093\u3067\u3057\u305F\u3002",
+  "colorScheme.preview.pickUnchanged": "\u8272\u306F\u3059\u3067\u306B\u8A2D\u5B9A\u3055\u308C\u3066\u3044\u307E\u3059\u3002",
   "colorScheme.field.target": "\u5BFE\u8C61",
   "colorScheme.field.kind": "kind",
   "colorScheme.field.fill": "\u5857\u308A",
@@ -21260,6 +21276,132 @@ function escapeDomainMindmapLabel(value) {
   return value.replace(/\r\n?/g, "\n").replace(/\n/g, " ").replace(/\(/g, "\uFF08").replace(/\)/g, "\uFF09").replace(/\s+/g, " ").trim();
 }
 
+// src/core/color-scheme-table-editor.ts
+var COLORS_SECTION_NAME = "Colors";
+var COLOR_HEADERS2 = ["target", "kind", "fill", "stroke", "text", "notes"];
+var HEX_RGB_PATTERN = /^#([0-9a-fA-F]{3})$/;
+var HEX_RRGGBB_PATTERN = /^#[0-9a-fA-F]{6}$/;
+function updateColorSchemeColorCell(markdown, request) {
+  const normalizedColor = normalizeHexColorForPicker(request.value);
+  if (!normalizedColor || !HEX_RRGGBB_PATTERN.test(normalizedColor)) {
+    return unchanged2(markdown, "invalid-color");
+  }
+  const columnIndex = COLOR_HEADERS2.indexOf(request.columnName);
+  if (columnIndex < 0) {
+    return unchanged2(markdown, "column-missing");
+  }
+  const lineEnding = markdown.includes("\r\n") ? "\r\n" : "\n";
+  const lines = markdown.split(/\r?\n/);
+  const sectionRange = findMarkdownSectionRange(lines, COLORS_SECTION_NAME);
+  if (!sectionRange) {
+    return unchanged2(markdown, "section-missing");
+  }
+  const tableStart = findTableStart(lines, sectionRange.start + 1, sectionRange.end);
+  if (tableStart === null || tableStart + 1 >= sectionRange.end) {
+    return unchanged2(markdown, "table-missing");
+  }
+  const headers = splitMarkdownTableRow(lines[tableStart]) ?? [];
+  if (!sameHeaders7(headers, [...COLOR_HEADERS2])) {
+    return unchanged2(markdown, "header-mismatch");
+  }
+  const separatorCells = splitMarkdownTableRow(lines[tableStart + 1]);
+  if (!separatorCells || separatorCells.length !== COLOR_HEADERS2.length) {
+    return unchanged2(markdown, "table-missing");
+  }
+  const targetLineIndex = findDataRowLineIndex(lines, tableStart + 2, sectionRange.end, request.rowIndex);
+  if (targetLineIndex === null) {
+    return unchanged2(markdown, "row-missing");
+  }
+  const ranges = getMarkdownTableCellRanges(lines[targetLineIndex]);
+  if (!ranges || !ranges[columnIndex]) {
+    return unchanged2(markdown, "column-missing");
+  }
+  const range = ranges[columnIndex];
+  const line = lines[targetLineIndex];
+  const rawCell = line.slice(range.rawStart, range.rawEnd);
+  const updatedLine = rawCell.trim().length === 0 ? `${line.slice(0, range.rawStart)} ${normalizedColor} ${line.slice(range.rawEnd)}` : `${line.slice(0, range.contentStart)}${normalizedColor}${line.slice(range.contentEnd)}`;
+  if (updatedLine === line) {
+    return {
+      changed: false,
+      updatedMarkdown: markdown,
+      status: "unchanged"
+    };
+  }
+  const updatedLines = [...lines];
+  updatedLines[targetLineIndex] = updatedLine;
+  return {
+    changed: true,
+    updatedMarkdown: updatedLines.join(lineEnding),
+    status: "updated"
+  };
+}
+function normalizeHexColorForPicker(value) {
+  const trimmed = value?.trim();
+  if (!trimmed) {
+    return null;
+  }
+  const rgb = trimmed.match(HEX_RGB_PATTERN);
+  if (rgb) {
+    return `#${rgb[1].split("").map((char) => `${char}${char}`).join("")}`.toLowerCase();
+  }
+  return HEX_RRGGBB_PATTERN.test(trimmed) ? trimmed.toLowerCase() : null;
+}
+function findMarkdownSectionRange(lines, sectionName) {
+  const headingPattern = /^##\s+(.+?)\s*$/;
+  let start = null;
+  for (let index = 0; index < lines.length; index += 1) {
+    const match = lines[index].match(headingPattern);
+    if (!match) {
+      continue;
+    }
+    if (start !== null) {
+      return { start, end: index };
+    }
+    if (normalizeHeadingName(match[1]) === normalizeHeadingName(sectionName)) {
+      start = index;
+    }
+  }
+  return start === null ? null : { start, end: lines.length };
+}
+function findTableStart(lines, start, end) {
+  for (let index = start; index < end; index += 1) {
+    if (lines[index].trim().startsWith("|")) {
+      return index;
+    }
+  }
+  return null;
+}
+function findDataRowLineIndex(lines, start, end, targetRowIndex) {
+  let currentDataRowIndex = 0;
+  for (let index = start; index < end; index += 1) {
+    if (!lines[index].trim().startsWith("|")) {
+      continue;
+    }
+    const values = splitMarkdownTableRow(lines[index]);
+    if (!values || isEmptyMarkdownTableDataRow(values)) {
+      continue;
+    }
+    if (currentDataRowIndex === targetRowIndex) {
+      return index;
+    }
+    currentDataRowIndex += 1;
+  }
+  return null;
+}
+function sameHeaders7(actual, expected) {
+  return actual.length === expected.length && actual.every((header, index) => header === expected[index]);
+}
+function normalizeHeadingName(value) {
+  return value.trim().replace(/\s+#+$/, "").trim().toLowerCase();
+}
+function unchanged2(markdown, status) {
+  return {
+    changed: false,
+    updatedMarkdown: markdown,
+    status
+  };
+}
+
 // src/views/usage-view-renderer.ts
 function renderUsageViewSections(container, sections, options) {
   for (const section of sections) {
@@ -22834,9 +22976,12 @@ var ModelingPreviewView = class extends import_obsidian7.ItemView {
       this.t("colorScheme.preview.colors"),
       true
     );
-    this.renderColorSchemeTable(section, state.model.colors);
+    const canPickColors = !state.warnings.some(
+      (warning) => warning.code === "invalid-table-column" && (warning.field === "Colors" || warning.context?.section === "Colors" || /section "Colors"/.test(warning.message))
+    );
+    this.renderColorSchemeTable(section, state.model.colors, canPickColors);
   }
-  renderColorSchemeTable(container, colors) {
+  renderColorSchemeTable(container, colors, canPickColors) {
     const tableWrap = container.createDiv({ cls: "model-weave-table-wrap" });
     const table = tableWrap.createEl("table", {
       cls: "model-weave-summary-table model-weave-data-table"
@@ -22867,7 +23012,7 @@ var ModelingPreviewView = class extends import_obsidian7.ItemView {
       return;
     }
     for (const color of colors) {
-      this.renderColorSchemeTableRow(tbody, color);
+      this.renderColorSchemeTableRow(tbody, color, canPickColors);
     }
   }
   renderAppliedColorScheme(container, colorScheme, targets) {
@@ -22892,17 +23037,13 @@ var ModelingPreviewView = class extends import_obsidian7.ItemView {
       this.t
     );
   }
-  renderColorSchemeTableRow(tbody, color) {
+  renderColorSchemeTableRow(tbody, color, canPickColors) {
     const row = tbody.createEl("tr");
-    for (const value of [
-      color.target ?? this.t("domains.value.none"),
-      color.kind,
-      color.fill ?? this.t("domains.value.none"),
-      color.stroke ?? this.t("domains.value.none"),
-      color.text ?? this.t("domains.value.none")
-    ]) {
-      row.createEl("td", { text: value });
-    }
+    row.createEl("td", { text: color.target ?? this.t("domains.value.none") });
+    row.createEl("td", { text: color.kind });
+    this.renderColorSchemeColorCell(row, color, "fill", canPickColors);
+    this.renderColorSchemeColorCell(row, color, "stroke", canPickColors);
+    this.renderColorSchemeColorCell(row, color, "text", canPickColors);
     const swatchCell = row.createEl("td");
     const swatch = swatchCell.createSpan({
       cls: "model-weave-color-swatch"
@@ -22919,6 +23060,77 @@ var ModelingPreviewView = class extends import_obsidian7.ItemView {
     swatch.textContent = "Aa";
     row.createEl("td", { text: color.notes ?? "" });
   }
+  renderColorSchemeColorCell(row, color, columnName, canPickColors) {
+    const value = color[columnName] ?? "";
+    const normalized = normalizeHexColorForPicker(value);
+    const cell = row.createEl("td");
+    const control = cell.createDiv({ cls: "model-weave-color-cell-control" });
+    const swatch = control.createSpan({
+      cls: normalized ? "model-weave-color-cell-swatch" : "model-weave-color-cell-swatch model-weave-color-cell-swatch-empty",
+      attr: { "aria-hidden": "true" }
+    });
+    if (normalized) {
+      swatch.style.backgroundColor = normalized;
+    }
+    const text = control.createSpan({
+      text: value || this.t("colorScheme.preview.blankColor"),
+      cls: value ? "model-weave-color-cell-value" : "model-weave-color-cell-value model-weave-summary-empty-cell"
+    });
+    if (normalized) {
+      text.title = normalized;
+    } else if (value) {
+      text.title = this.t("colorScheme.preview.unsupportedColor");
+    }
+    if (!canPickColors) {
+      return;
+    }
+    const input = control.createEl("input", {
+      cls: "model-weave-color-picker-input",
+      attr: {
+        type: "color",
+        value: normalized ?? "#ffffff",
+        "aria-label": this.t("colorScheme.preview.pickAria", {
+          column: this.t(`colorScheme.field.${columnName}`)
+        })
+      }
+    });
+    const button = control.createEl("button", {
+      text: this.t("colorScheme.preview.pick"),
+      cls: "model-weave-color-picker-button",
+      attr: { type: "button" }
+    });
+    button.addEventListener("click", () => {
+      input.click();
+    });
+    input.addEventListener("change", () => {
+      void this.applyColorSchemeColorPick(color.rowIndex, columnName, input.value);
+    });
+  }
+  async applyColorSchemeColorPick(rowIndex, columnName, value) {
+    try {
+      const file = this.getCurrentTFileForQuickFix();
+      if (!file) {
+        new import_obsidian7.Notice(this.t("colorScheme.preview.pickFailed"));
+        return;
+      }
+      const markdown = await this.app.vault.read(file);
+      const result = updateColorSchemeColorCell(markdown, {
+        rowIndex,
+        columnName,
+        value
+      });
+      if (!result.changed) {
+        const noticeKey = result.status === "unchanged" ? "colorScheme.preview.pickUnchanged" : "colorScheme.preview.pickFailed";
+        new import_obsidian7.Notice(this.t(noticeKey));
+        return;
+      }
+      await this.app.vault.modify(file, result.updatedMarkdown);
+      new import_obsidian7.Notice(this.t("colorScheme.preview.pickApplied"));
+      this.renderCurrentState();
+    } catch {
+      new import_obsidian7.Notice(this.t("colorScheme.preview.pickFailed"));
+    }
+  }
   renderDomainTable(container, domains) {
     const section = this.createCollapsibleSection(
       container,
diff --git a/src/core/color-scheme-table-editor.ts b/src/core/color-scheme-table-editor.ts
new file mode 100644
index 0000000..a11d996
--- /dev/null
+++ b/src/core/color-scheme-table-editor.ts
@@ -0,0 +1,188 @@
+import {
+  getMarkdownTableCellRanges,
+  isEmptyMarkdownTableDataRow,
+  splitMarkdownTableRow
+} from "../parsers/markdown-table";
+
+const COLORS_SECTION_NAME = "Colors";
+const COLOR_HEADERS = ["target", "kind", "fill", "stroke", "text", "notes"] as const;
+const HEX_RGB_PATTERN = /^#([0-9a-fA-F]{3})$/;
+const HEX_RRGGBB_PATTERN = /^#[0-9a-fA-F]{6}$/;
+
+export type ColorSchemeEditableColumn = "fill" | "stroke" | "text";
+
+export interface UpdateColorSchemeCellRequest {
+  rowIndex: number;
+  columnName: ColorSchemeEditableColumn;
+  value: string;
+}
+
+export interface UpdateColorSchemeCellResult {
+  changed: boolean;
+  updatedMarkdown: string;
+  status: "updated" | "unchanged" | "invalid-color" | "section-missing" | "table-missing" | "header-mismatch" | "row-missing" | "column-missing";
+}
+
+export function updateColorSchemeColorCell(
+  markdown: string,
+  request: UpdateColorSchemeCellRequest
+): UpdateColorSchemeCellResult {
+  const normalizedColor = normalizeHexColorForPicker(request.value);
+  if (!normalizedColor || !HEX_RRGGBB_PATTERN.test(normalizedColor)) {
+    return unchanged(markdown, "invalid-color");
+  }
+
+  const columnIndex = COLOR_HEADERS.indexOf(request.columnName);
+  if (columnIndex < 0) {
+    return unchanged(markdown, "column-missing");
+  }
+
+  const lineEnding = markdown.includes("\r\n") ? "\r\n" : "\n";
+  const lines = markdown.split(/\r?\n/);
+  const sectionRange = findMarkdownSectionRange(lines, COLORS_SECTION_NAME);
+  if (!sectionRange) {
+    return unchanged(markdown, "section-missing");
+  }
+
+  const tableStart = findTableStart(lines, sectionRange.start + 1, sectionRange.end);
+  if (tableStart === null || tableStart + 1 >= sectionRange.end) {
+    return unchanged(markdown, "table-missing");
+  }
+
+  const headers = splitMarkdownTableRow(lines[tableStart]) ?? [];
+  if (!sameHeaders(headers, [...COLOR_HEADERS])) {
+    return unchanged(markdown, "header-mismatch");
+  }
+
+  const separatorCells = splitMarkdownTableRow(lines[tableStart + 1]);
+  if (!separatorCells || separatorCells.length !== COLOR_HEADERS.length) {
+    return unchanged(markdown, "table-missing");
+  }
+
+  const targetLineIndex = findDataRowLineIndex(lines, tableStart + 2, sectionRange.end, request.rowIndex);
+  if (targetLineIndex === null) {
+    return unchanged(markdown, "row-missing");
+  }
+
+  const ranges = getMarkdownTableCellRanges(lines[targetLineIndex]);
+  if (!ranges || !ranges[columnIndex]) {
+    return unchanged(markdown, "column-missing");
+  }
+
+  const range = ranges[columnIndex];
+  const line = lines[targetLineIndex];
+  const rawCell = line.slice(range.rawStart, range.rawEnd);
+  const updatedLine = rawCell.trim().length === 0
+    ? `${line.slice(0, range.rawStart)} ${normalizedColor} ${line.slice(range.rawEnd)}`
+    : `${line.slice(0, range.contentStart)}${normalizedColor}${line.slice(range.contentEnd)}`;
+  if (updatedLine === line) {
+    return {
+      changed: false,
+      updatedMarkdown: markdown,
+      status: "unchanged"
+    };
+  }
+
+  const updatedLines = [...lines];
+  updatedLines[targetLineIndex] = updatedLine;
+  return {
+    changed: true,
+    updatedMarkdown: updatedLines.join(lineEnding),
+    status: "updated"
+  };
+}
+
+export function normalizeHexColorForPicker(value: string | null | undefined): string | null {
+  const trimmed = value?.trim();
+  if (!trimmed) {
+    return null;
+  }
+
+  const rgb = trimmed.match(HEX_RGB_PATTERN);
+  if (rgb) {
+    return `#${rgb[1].split("").map((char) => `${char}${char}`).join("")}`.toLowerCase();
+  }
+
+  return HEX_RRGGBB_PATTERN.test(trimmed)
+    ? trimmed.toLowerCase()
+    : null;
+}
+
+function findMarkdownSectionRange(
+  lines: string[],
+  sectionName: string
+): { start: number; end: number } | null {
+  const headingPattern = /^##\s+(.+?)\s*$/;
+  let start: number | null = null;
+
+  for (let index = 0; index < lines.length; index += 1) {
+    const match = lines[index].match(headingPattern);
+    if (!match) {
+      continue;
+    }
+
+    if (start !== null) {
+      return { start, end: index };
+    }
+
+    if (normalizeHeadingName(match[1]) === normalizeHeadingName(sectionName)) {
+      start = index;
+    }
+  }
+
+  return start === null ? null : { start, end: lines.length };
+}
+
+function findTableStart(lines: string[], start: number, end: number): number | null {
+  for (let index = start; index < end; index += 1) {
+    if (lines[index].trim().startsWith("|")) {
+      return index;
+    }
+  }
+  return null;
+}
+
+function findDataRowLineIndex(
+  lines: string[],
+  start: number,
+  end: number,
+  targetRowIndex: number
+): number | null {
+  let currentDataRowIndex = 0;
+  for (let index = start; index < end; index += 1) {
+    if (!lines[index].trim().startsWith("|")) {
+      continue;
+    }
+
+    const values = splitMarkdownTableRow(lines[index]);
+    if (!values || isEmptyMarkdownTableDataRow(values)) {
+      continue;
+    }
+
+    if (currentDataRowIndex === targetRowIndex) {
+      return index;
+    }
+    currentDataRowIndex += 1;
+  }
+  return null;
+}
+
+function sameHeaders(actual: string[], expected: string[]): boolean {
+  return actual.length === expected.length &&
+    actual.every((header, index) => header === expected[index]);
+}
+
+function normalizeHeadingName(value: string): string {
+  return value.trim().replace(/\s+#+$/, "").trim().toLowerCase();
+}
+
+function unchanged(
+  markdown: string,
+  status: Exclude<UpdateColorSchemeCellResult["status"], "updated" | "unchanged">
+): UpdateColorSchemeCellResult {
+  return {
+    changed: false,
+    updatedMarkdown: markdown,
+    status
+  };
+}
diff --git a/src/i18n/en.ts b/src/i18n/en.ts
index 7b8ffd6..3fb0cc0 100644
--- a/src/i18n/en.ts
+++ b/src/i18n/en.ts
@@ -368,6 +368,15 @@ export const EN_MESSAGES: ModelWeaveMessageDictionary = {
   "colorScheme.preview.swatch": "Color preview",
   "colorScheme.preview.targets": "Targets",
   "colorScheme.preview.empty": "No colors defined.",
+  // eslint-disable-next-line obsidianmd/ui/sentence-case-locale-module
+  "colorScheme.preview.blankColor": "(blank)",
+  // eslint-disable-next-line obsidianmd/ui/sentence-case-locale-module
+  "colorScheme.preview.unsupportedColor": "Unsupported color value; picking a color will replace it with #RRGGBB.",
+  "colorScheme.preview.pick": "Pick",
+  "colorScheme.preview.pickAria": "Pick {column} color",
+  "colorScheme.preview.pickApplied": "Color updated.",
+  "colorScheme.preview.pickFailed": "Could not update the color cell.",
+  "colorScheme.preview.pickUnchanged": "Color is already set.",
   "colorScheme.field.target": "Target",
   "colorScheme.field.kind": "Kind",
   "colorScheme.field.fill": "Fill",
diff --git a/src/i18n/ja.ts b/src/i18n/ja.ts
index 7be85c4..d6f4ef3 100644
--- a/src/i18n/ja.ts
+++ b/src/i18n/ja.ts
@@ -325,6 +325,13 @@ export const JA_MESSAGES: ModelWeaveMessageDictionary = {
   "colorScheme.preview.swatch": "カラー確認",
   "colorScheme.preview.targets": "対象",
   "colorScheme.preview.empty": "Color は定義されていません。",
+  "colorScheme.preview.blankColor": "（空）",
+  "colorScheme.preview.unsupportedColor": "未対応の色値です。色を選ぶと #RRGGBB で置き換えます。",
+  "colorScheme.preview.pick": "選択",
+  "colorScheme.preview.pickAria": "{column} の色を選択",
+  "colorScheme.preview.pickApplied": "色を更新しました。",
+  "colorScheme.preview.pickFailed": "色セルを更新できませんでした。",
+  "colorScheme.preview.pickUnchanged": "色はすでに設定されています。",
   "colorScheme.field.target": "対象",
   "colorScheme.field.kind": "kind",
   "colorScheme.field.fill": "塗り",
diff --git a/src/views/modeling-preview-view.ts b/src/views/modeling-preview-view.ts
index 5449750..9db1f35 100644
--- a/src/views/modeling-preview-view.ts
+++ b/src/views/modeling-preview-view.ts
@@ -69,6 +69,11 @@ import {
   getExpectedHeaderForDiagnostic as getSchemaExpectedHeaderForDiagnostic,
   resolveDiagnosticSectionGuidance
 } from "../core/diagnostic-section-guidance";
+import {
+  normalizeHexColorForPicker,
+  updateColorSchemeColorCell,
+  type ColorSchemeEditableColumn
+} from "../core/color-scheme-table-editor";
 import type { ModelWeaveViewerPreferences } from "../settings/model-weave-settings";
 import type { ModelingVaultIndex } from "../core/vault-index";
 import type {
@@ -1974,12 +1979,21 @@ export class ModelingPreviewView extends ItemView {
       this.t("colorScheme.preview.colors"),
       true
     );
-    this.renderColorSchemeTable(section, state.model.colors);
+    const canPickColors = !state.warnings.some((warning) =>
+      warning.code === "invalid-table-column" &&
+      (
+        warning.field === "Colors" ||
+        warning.context?.section === "Colors" ||
+        /section "Colors"/.test(warning.message)
+      )
+    );
+    this.renderColorSchemeTable(section, state.model.colors, canPickColors);
   }
 
   private renderColorSchemeTable(
     container: HTMLElement,
-    colors: ColorSchemeEntry[]
+    colors: ColorSchemeEntry[],
+    canPickColors: boolean
   ): void {
     const tableWrap = container.createDiv({ cls: "model-weave-table-wrap" });
     const table = tableWrap.createEl("table", {
@@ -2013,7 +2027,7 @@ export class ModelingPreviewView extends ItemView {
     }
 
     for (const color of colors) {
-      this.renderColorSchemeTableRow(tbody, color);
+      this.renderColorSchemeTableRow(tbody, color, canPickColors);
     }
   }
 
@@ -2051,18 +2065,15 @@ export class ModelingPreviewView extends ItemView {
 
   private renderColorSchemeTableRow(
     tbody: HTMLElement,
-    color: ColorSchemeEntry
+    color: ColorSchemeEntry,
+    canPickColors: boolean
   ): void {
     const row = tbody.createEl("tr");
-    for (const value of [
-      color.target ?? this.t("domains.value.none"),
-      color.kind,
-      color.fill ?? this.t("domains.value.none"),
-      color.stroke ?? this.t("domains.value.none"),
-      color.text ?? this.t("domains.value.none")
-    ]) {
-      row.createEl("td", { text: value });
-    }
+    row.createEl("td", { text: color.target ?? this.t("domains.value.none") });
+    row.createEl("td", { text: color.kind });
+    this.renderColorSchemeColorCell(row, color, "fill", canPickColors);
+    this.renderColorSchemeColorCell(row, color, "stroke", canPickColors);
+    this.renderColorSchemeColorCell(row, color, "text", canPickColors);
 
     const swatchCell = row.createEl("td");
     const swatch = swatchCell.createSpan({
@@ -2082,6 +2093,98 @@ export class ModelingPreviewView extends ItemView {
     row.createEl("td", { text: color.notes ?? "" });
   }
 
+  private renderColorSchemeColorCell(
+    row: HTMLElement,
+    color: ColorSchemeEntry,
+    columnName: ColorSchemeEditableColumn,
+    canPickColors: boolean
+  ): void {
+    const value = color[columnName] ?? "";
+    const normalized = normalizeHexColorForPicker(value);
+    const cell = row.createEl("td");
+    const control = cell.createDiv({ cls: "model-weave-color-cell-control" });
+    const swatch = control.createSpan({
+      cls: normalized
+        ? "model-weave-color-cell-swatch"
+        : "model-weave-color-cell-swatch model-weave-color-cell-swatch-empty",
+      attr: { "aria-hidden": "true" }
+    });
+    if (normalized) {
+      swatch.style.backgroundColor = normalized;
+    }
+    const text = control.createSpan({
+      text: value || this.t("colorScheme.preview.blankColor"),
+      cls: value
+        ? "model-weave-color-cell-value"
+        : "model-weave-color-cell-value model-weave-summary-empty-cell"
+    });
+    if (normalized) {
+      text.title = normalized;
+    } else if (value) {
+      text.title = this.t("colorScheme.preview.unsupportedColor");
+    }
+
+    if (!canPickColors) {
+      return;
+    }
+
+    const input = control.createEl("input", {
+      cls: "model-weave-color-picker-input",
+      attr: {
+        type: "color",
+        value: normalized ?? "#ffffff",
+        "aria-label": this.t("colorScheme.preview.pickAria", {
+          column: this.t(`colorScheme.field.${columnName}`)
+        })
+      }
+    });
+    const button = control.createEl("button", {
+      text: this.t("colorScheme.preview.pick"),
+      cls: "model-weave-color-picker-button",
+      attr: { type: "button" }
+    });
+    button.addEventListener("click", () => {
+      input.click();
+    });
+    input.addEventListener("change", () => {
+      void this.applyColorSchemeColorPick(color.rowIndex, columnName, input.value);
+    });
+  }
+
+  private async applyColorSchemeColorPick(
+    rowIndex: number,
+    columnName: ColorSchemeEditableColumn,
+    value: string
+  ): Promise<void> {
+    try {
+      const file = this.getCurrentTFileForQuickFix();
+      if (!file) {
+        new Notice(this.t("colorScheme.preview.pickFailed"));
+        return;
+      }
+
+      const markdown = await this.app.vault.read(file);
+      const result = updateColorSchemeColorCell(markdown, {
+        rowIndex,
+        columnName,
+        value
+      });
+      if (!result.changed) {
+        const noticeKey = result.status === "unchanged"
+          ? "colorScheme.preview.pickUnchanged"
+          : "colorScheme.preview.pickFailed";
+        new Notice(this.t(noticeKey));
+        return;
+      }
+
+      await this.app.vault.modify(file, result.updatedMarkdown);
+      new Notice(this.t("colorScheme.preview.pickApplied"));
+      this.renderCurrentState();
+    } catch {
+      new Notice(this.t("colorScheme.preview.pickFailed"));
+    }
+  }
+
   private renderDomainTable(container: HTMLElement, domains: DomainEntry[]): void {
     const section = this.createCollapsibleSection(
       container,
diff --git a/styles.css b/styles.css
index e04a667..4f6e234 100644
--- a/styles.css
+++ b/styles.css
@@ -931,6 +931,53 @@ body.model-weave-focus-mode-active .popover.hover-popover {
   font-size: 0.75rem;
 }
 
+.model-weave-color-cell-control {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  flex-wrap: wrap;
+  min-width: 9rem;
+}
+
+.model-weave-color-cell-swatch {
+  width: 1.25rem;
+  height: 1.25rem;
+  flex: 0 0 auto;
+  border: 1px solid var(--background-modifier-border);
+  border-radius: 4px;
+  background: var(--background-primary-alt);
+}
+
+.model-weave-color-cell-swatch-empty {
+  background: repeating-linear-gradient(
+    45deg,
+    var(--background-primary-alt),
+    var(--background-primary-alt) 4px,
+    var(--background-modifier-border) 4px,
+    var(--background-modifier-border) 5px
+  );
+}
+
+.model-weave-color-cell-value {
+  font-family: var(--font-monospace);
+  font-size: 0.85em;
+  white-space: nowrap;
+}
+
+.model-weave-color-picker-input {
+  width: 1px;
+  height: 1px;
+  opacity: 0;
+  position: absolute;
+  pointer-events: none;
+}
+
+.model-weave-color-picker-button {
+  padding: 2px 8px;
+  font-size: 0.8em;
+  line-height: 1.4;
+}
+
 .model-weave-summary-details .model-weave-summary-empty-cell {
   color: var(--text-muted);
   font-style: italic;
diff --git a/test/color-scheme-picker-assist.test.mjs b/test/color-scheme-picker-assist.test.mjs
new file mode 100644
index 0000000..add6dd4
--- /dev/null
+++ b/test/color-scheme-picker-assist.test.mjs
@@ -0,0 +1,144 @@
+import assert from "node:assert/strict";
+import { test } from "node:test";
+import { build } from "esbuild";
+
+const outputFile = "dist/test-color-scheme-picker-assist.mjs";
+
+await build({
+  stdin: {
+    contents: [
+      'export { parseColorSchemeFile } from "./src/parsers/color-scheme-parser";',
+      'export { buildCurrentObjectDiagnostics } from "./src/core/current-file-diagnostics";',
+      'export { getExpectedHeaderForDiagnostic } from "./src/core/diagnostic-section-guidance";',
+      'export { normalizeHexColorForPicker, updateColorSchemeColorCell } from "./src/core/color-scheme-table-editor";'
+    ].join("\n"),
+    resolveDir: ".",
+    sourcefile: "test-color-scheme-picker-assist-entry.ts",
+    loader: "ts"
+  },
+  bundle: true,
+  format: "esm",
+  platform: "browser",
+  outfile: outputFile,
+  plugins: [
+    {
+      name: "stub-obsidian",
+      setup(buildApi) {
+        buildApi.onResolve({ filter: /^obsidian$/ }, () => ({
+          path: "obsidian",
+          namespace: "stub"
+        }));
+        buildApi.onLoad({ filter: /^obsidian$/, namespace: "stub" }, () => ({
+          contents: "export const getLanguage = () => 'en';",
+          loader: "js"
+        }));
+      }
+    }
+  ],
+  logLevel: "silent"
+});
+
+const {
+  buildCurrentObjectDiagnostics,
+  getExpectedHeaderForDiagnostic,
+  normalizeHexColorForPicker,
+  parseColorSchemeFile,
+  updateColorSchemeColorCell
+} = await import("../" + outputFile + "?t=" + Date.now());
+
+function colorSchemeMarkdown({ header = "| target | kind | fill | stroke | text | notes |", row = "| domain | system | #112233 | #445566 | #abcdef | Base |" } = {}) {
+  return `---
+type: color_scheme
+id: COLOR-TEST
+name: Color Test
+---
+# Color Test
+
+## Colors
+
+${header}
+|---|---|---|---|---|---|
+${row}
+`;
+}
+
+function update(markdown, rowIndex, columnName, value) {
+  return updateColorSchemeColorCell(markdown, { rowIndex, columnName, value });
+}
+
+test("updates a fill cell in a valid color_scheme Colors table", () => {
+  const result = update(colorSchemeMarkdown(), 0, "fill", "#aabbcc");
+
+  assert.equal(result.status, "updated");
+  assert.equal(result.changed, true);
+  assert.match(result.updatedMarkdown, /\| domain \| system \| #aabbcc \| #445566 \| #abcdef \| Base \|/);
+});
+
+test("updates a stroke cell in a valid color_scheme Colors table", () => {
+  const result = update(colorSchemeMarkdown(), 0, "stroke", "#0a1b2c");
+
+  assert.equal(result.status, "updated");
+  assert.match(result.updatedMarkdown, /\| domain \| system \| #112233 \| #0a1b2c \| #abcdef \| Base \|/);
+});
+
+test("updates a text cell in a valid color_scheme Colors table", () => {
+  const result = update(colorSchemeMarkdown(), 0, "text", "#ffffff");
+
+  assert.equal(result.status, "updated");
+  assert.match(result.updatedMarkdown, /\| domain \| system \| #112233 \| #445566 \| #ffffff \| Base \|/);
+});
+
+test("updates a blank color cell with a selected RRGGBB value", () => {
+  const markdown = colorSchemeMarkdown({ row: "| domain | system |  | #445566 | #abcdef | Base |" });
+  const result = update(markdown, 0, "fill", "#123abc");
+
+  assert.equal(result.status, "updated");
+  assert.match(result.updatedMarkdown, /\| domain \| system \| #123abc \| #445566 \| #abcdef \| Base \|/);
+});
+
+test("accepts an existing RGB value and can replace it safely", () => {
+  const markdown = colorSchemeMarkdown({ row: "| domain | system | #abc | #445566 | #abcdef | Base |" });
+
+  assert.equal(normalizeHexColorForPicker("#abc"), "#aabbcc");
+  const result = update(markdown, 0, "fill", "#ddeeff");
+
+  assert.equal(result.status, "updated");
+  assert.match(result.updatedMarkdown, /\| domain \| system \| #ddeeff \| #445566 \| #abcdef \| Base \|/);
+});
+
+test("replaces unsupported existing color values without rewriting other cells", () => {
+  const markdown = colorSchemeMarkdown({ row: "| domain | system | blue | #445566 | #abcdef | Base |" });
+  const result = update(markdown, 0, "fill", "#010203");
+
+  assert.equal(result.status, "updated");
+  assert.match(result.updatedMarkdown, /\| domain \| system \| #010203 \| #445566 \| #abcdef \| Base \|/);
+});
+
+test("refuses to update a malformed Colors header", () => {
+  const markdown = colorSchemeMarkdown({ header: "| targeta | kind | fill | stroke | text | notes |" });
+  const result = update(markdown, 0, "fill", "#010203");
+
+  assert.equal(result.status, "header-mismatch");
+  assert.equal(result.changed, false);
+  assert.equal(result.updatedMarkdown, markdown);
+});
+
+test("malformed Colors header keeps schema-driven diagnostics behavior", () => {
+  const markdown = colorSchemeMarkdown({
+    header: "| targeta | kind | fill | stroke | text | notes |",
+    row: "| domain | system | #112233 | #445566 | #abcdef | Base |\n| domain | system | #112233 | #445566 | #abcdef | Duplicate |"
+  });
+  const parsed = parseColorSchemeFile(markdown, "COLOR-TEST.md");
+  assert.ok(parsed.file);
+
+  const diagnostics = buildCurrentObjectDiagnostics(parsed.file, { warningsByFilePath: {} }, null, parsed.warnings);
+  const headerDiagnostic = diagnostics.find((diagnostic) => diagnostic.code === "invalid-table-column");
+
+  assert.ok(headerDiagnostic);
+  assert.equal(headerDiagnostic.severity, "error");
+  assert.equal(getExpectedHeaderForDiagnostic(headerDiagnostic), "| target | kind | fill | stroke | text | notes |");
+  assert.equal(
+    diagnostics.some((diagnostic) => /duplicate Color Scheme entry/.test(diagnostic.message)),
+    false
+  );
+});