diff --git a/.changeset/shadcn-gray-variant.md b/.changeset/shadcn-gray-variant.md
new file mode 100644
index 0000000000..5e75544ecf
--- /dev/null
+++ b/.changeset/shadcn-gray-variant.md
@@ -0,0 +1,5 @@
+---
+"@runfusion/fusion": minor
+---
+
+Add a Shadcn Gray dashboard color theme with a fully neutral zinc-gray accent.
diff --git a/docs/dashboard-guide.md b/docs/dashboard-guide.md
index 67275e26d6..a4d79a0ebe 100644
--- a/docs/dashboard-guide.md
+++ b/docs/dashboard-guide.md
@@ -1285,7 +1285,7 @@ Non-Command-Center dashboard CSS uses `--text` as the canonical primary text tok
 
 ### Theme system
 
-Dark/light modes via `data-theme`; 66 color themes via `data-color-theme` (lazy-loaded from `app/public/theme-data.css`), including the Shadcn zinc-neutral theme with an orange default highlight/accent and its color family: Shadcn Blue/Green/Red/Purple/Pink/Orange/Yellow, Shadcn Mono (grayscale with red accent), and Shadcn Black (pure black and white). Air is the minimal, borderless, paper-like preset with near-monochrome tokens and CSS-only chrome flattening.
+Dark/light modes via `data-theme`; 67 color themes via `data-color-theme` (lazy-loaded from `app/public/theme-data.css`), including the Shadcn zinc-neutral theme with an orange default highlight/accent and its color family: Shadcn Blue/Green/Red/Purple/Pink/Orange/Yellow, Shadcn Mono (grayscale with red accent), Shadcn Black (pure black and white), and Shadcn Gray (fully neutral zinc-gray accent). Air is the minimal, borderless, paper-like preset with near-monochrome tokens and CSS-only chrome flattening.
 
 - **Base tokens** (`--bg`, `--surface`, etc.) — redefine in `:root`, `[data-theme="light"]`, and every theme block.
 - **Semantic tokens** (`--autopilot-pulse`, `--event-error-text`, `--badge-mission-*`, `--fab-*`) — `:root` + `[data-theme="light"]` only; no per-color-theme overrides.
diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
index a064210265..e8b7720fe0 100644
--- a/packages/core/src/types.ts
+++ b/packages/core/src/types.ts
@@ -330,7 +330,7 @@ export const COLOR_THEMES = [
   "neon-bloom",
   "sepia",
   "shadcn",
-  // FNXC:DashboardTheming 2026-06-19-16:07: FN-6756 extends the published color-theme union with shadcn-family accent variants; keep dashboard theme options, bootstrap validation, swatches, and theme-data token blocks in lockstep with this ordered list.
+  // FNXC:DashboardTheming 2026-06-19-16:07: FN-6756 extends the published color-theme union with shadcn-family accent variants; keep dashboard theme options, bootstrap validation, swatches, and theme-data token blocks in lockstep with this ordered list. FNXC:DashboardTheming 2026-06-20-00:00: FN-6814 adds Shadcn Gray as the fully-neutral zinc accent variant; keep it distinct from Shadcn Mono's red accent and Shadcn Black's black/white CTA while preserving the shadcn-family lockstep ordering.
   "shadcn-blue",
   "shadcn-green",
   "shadcn-red",
@@ -339,7 +339,7 @@ export const COLOR_THEMES = [
   "shadcn-orange",
   "shadcn-yellow",
   "shadcn-mono",
-  "shadcn-black",
+  "shadcn-black", "shadcn-gray",
 ] as const;
 export type ColorTheme = (typeof COLOR_THEMES)[number];
 
diff --git a/packages/dashboard/app/__tests__/shadcn-gray-theme.test.ts b/packages/dashboard/app/__tests__/shadcn-gray-theme.test.ts
new file mode 100644
index 0000000000..cfee31e737
--- /dev/null
+++ b/packages/dashboard/app/__tests__/shadcn-gray-theme.test.ts
@@ -0,0 +1,65 @@
+import { describe, expect, it } from "vitest";
+import { COLOR_THEMES as CORE_COLOR_THEMES } from "@fusion/core";
+import { COLOR_THEMES as DASHBOARD_COLOR_THEMES } from "../components/themeOptions";
+import fs from "fs";
+import path from "path";
+
+const themeDataPath = path.resolve(__dirname, "../public/theme-data.css");
+const dashboardIndexPath = path.resolve(__dirname, "../index.html");
+
+/*
+FNXC:DashboardTheming 2026-06-20-00:00:
+Shadcn Gray is a zinc-only accent variant. This test locks the dashboard wiring and neutral token intent without asserting the desktop bootstrap validator, which intentionally excludes all shadcn variants.
+*/
+describe("Shadcn Gray color theme", () => {
+  const themeData = fs.readFileSync(themeDataPath, "utf-8");
+
+  it("defines dark and light neutral-gray shadcn token blocks", () => {
+    const darkBlock = extractSelectorBlock(themeData, '[data-color-theme="shadcn-gray"]');
+    const lightBlock = extractSelectorBlock(themeData, '[data-color-theme="shadcn-gray"][data-theme="light"]');
+
+    expect(darkBlock).toContain("--surface-hover:");
+    expect(lightBlock).toContain("--surface-hover:");
+    expect(darkBlock).toContain("--btn-border-width: 1px;");
+    expect(lightBlock).toContain("--cta-glow: none;");
+    expect(darkBlock).toContain("--accent: #a1a1aa;");
+    expect(lightBlock).toContain("--accent: #52525b;");
+    expect(darkBlock).toContain("--color-info: #a1a1aa;");
+    expect(lightBlock).toContain("--color-info: #52525b;");
+    expect(`${darkBlock}\n${lightBlock}`).not.toContain("#ef4444");
+    expect(`${darkBlock}\n${lightBlock}`).not.toContain("#3b82f6");
+    expect(`${darkBlock}\n${lightBlock}`).not.toContain("#60a5fa");
+  });
+
+  it("registers Shadcn Gray in core, dashboard options, and the dashboard bootstrap validator", () => {
+    expect(CORE_COLOR_THEMES).toContain("shadcn-gray");
+    expect(DASHBOARD_COLOR_THEMES).toContainEqual({
+      value: "shadcn-gray",
+      label: "Shadcn Gray",
+      className: "theme-swatch-shadcn-gray",
+    });
+
+    expect(fs.readFileSync(dashboardIndexPath, "utf-8")).toContain("'shadcn-gray'");
+  });
+});
+
+function extractSelectorBlock(css: string, selector: string): string {
+  const startIdx = css.indexOf(`${selector} {`);
+  if (startIdx === -1) {
+    throw new Error(`Could not find selector block: ${selector}`);
+  }
+
+  const openBraceIdx = css.indexOf("{", startIdx);
+  let depth = 1;
+  let end = openBraceIdx;
+  for (let i = openBraceIdx + 1; i < css.length; i++) {
+    if (css[i] === "{") depth++;
+    if (css[i] === "}") depth--;
+    if (depth === 0) {
+      end = i;
+      break;
+    }
+  }
+
+  return css.slice(startIdx, end + 1);
+}
diff --git a/packages/dashboard/app/components/ThemeSelector.css b/packages/dashboard/app/components/ThemeSelector.css
index 7d809e483d..b2f0beff66 100644
--- a/packages/dashboard/app/components/ThemeSelector.css
+++ b/packages/dashboard/app/components/ThemeSelector.css
@@ -451,6 +451,14 @@
   --swatch-sample-4: #27272a;
 }
 
+/* FNXC:DashboardTheming 2026-06-20-00:00: The Shadcn Gray swatch previews the zinc-only accent choice so users can distinguish it from red-accent Mono and black/white CTA Black before selecting it. */
+.theme-swatch-shadcn-gray {
+  --swatch-sample-1: #09090b;
+  --swatch-sample-2: #18181b;
+  --swatch-sample-3: #a1a1aa;
+  --swatch-sample-4: #27272a;
+}
+
 .theme-swatch-ayu {
   --swatch-sample-1: #0f1419;
   --swatch-sample-2: #131d27;
@@ -732,6 +740,13 @@
   --swatch-sample-4: #e4e4e7;
 }
 
+[data-theme="light"] .theme-swatch-shadcn-gray {
+  --swatch-sample-1: #ffffff;
+  --swatch-sample-2: #f4f4f5;
+  --swatch-sample-3: #52525b;
+  --swatch-sample-4: #e4e4e7;
+}
+
 [data-theme="light"] .theme-swatch-ayu {
   --swatch-sample-1: #fafafa;
   --swatch-sample-2: #f3f3f3;
diff --git a/packages/dashboard/app/components/themeOptions.ts b/packages/dashboard/app/components/themeOptions.ts
index fd6d1894ac..5e0594e415 100644
--- a/packages/dashboard/app/components/themeOptions.ts
+++ b/packages/dashboard/app/components/themeOptions.ts
@@ -78,4 +78,6 @@ export const COLOR_THEMES: { value: ColorTheme; label: string; className: string
   { value: "shadcn-yellow", label: "Shadcn Yellow", className: "theme-swatch-shadcn-yellow" },
   { value: "shadcn-mono", label: "Shadcn Mono", className: "theme-swatch-shadcn-mono" },
   { value: "shadcn-black", label: "Shadcn Black", className: "theme-swatch-shadcn-black" },
+  /* FNXC:DashboardTheming 2026-06-20-00:00: Shadcn Gray is the fully-neutral zinc accent option; keep it adjacent to Shadcn Black so selectors mirror the core COLOR_THEMES order. */
+  { value: "shadcn-gray", label: "Shadcn Gray", className: "theme-swatch-shadcn-gray" },
 ];
diff --git a/packages/dashboard/app/index.html b/packages/dashboard/app/index.html
index 7d49303281..bd8e94e77d 100644
--- a/packages/dashboard/app/index.html
+++ b/packages/dashboard/app/index.html
@@ -160,7 +160,7 @@
         try {
           var mode = localStorage.getItem('kb-dashboard-theme-mode') || 'dark';
           var colorTheme = localStorage.getItem('kb-dashboard-color-theme') || 'default';
-          var validThemes = ['default', 'ocean', 'forest', 'sunset', 'zen', 'berry', 'high-contrast', 'industrial', 'monochrome', 'slate', 'ash', 'air', 'graphite', 'silver', 'solarized', 'factory', 'factory-mono', 'ayu', 'one-dark', 'nord', 'dracula', 'gruvbox', 'tokyo-night', 'catppuccin-mocha', 'github-dark', 'everforest', 'rose-pine', 'kanagawa', 'night-owl', 'palenight', 'monokai-pro', 'slime', 'brutalist', 'neon-city', 'parchment', 'terminal', 'glass', 'horizon', 'vitesse', 'outrun', 'snazzy', 'porple', 'espresso', 'mars', 'poimandres', 'ember', 'rust', 'copper', 'foundry', 'carbon', 'sandstone', 'lagoon', 'frost', 'lavender', 'neon-bloom', 'sepia', 'shadcn', 'shadcn-blue', 'shadcn-green', 'shadcn-red', 'shadcn-purple', 'shadcn-pink', 'shadcn-orange', 'shadcn-yellow', 'shadcn-mono', 'shadcn-black'];
+          var validThemes = ['default', 'ocean', 'forest', 'sunset', 'zen', 'berry', 'high-contrast', 'industrial', 'monochrome', 'slate', 'ash', 'air', 'graphite', 'silver', 'solarized', 'factory', 'factory-mono', 'ayu', 'one-dark', 'nord', 'dracula', 'gruvbox', 'tokyo-night', 'catppuccin-mocha', 'github-dark', 'everforest', 'rose-pine', 'kanagawa', 'night-owl', 'palenight', 'monokai-pro', 'slime', 'brutalist', 'neon-city', 'parchment', 'terminal', 'glass', 'horizon', 'vitesse', 'outrun', 'snazzy', 'porple', 'espresso', 'mars', 'poimandres', 'ember', 'rust', 'copper', 'foundry', 'carbon', 'sandstone', 'lagoon', 'frost', 'lavender', 'neon-bloom', 'sepia', 'shadcn', 'shadcn-blue', 'shadcn-green', 'shadcn-red', 'shadcn-purple', 'shadcn-pink', 'shadcn-orange', 'shadcn-yellow', 'shadcn-mono', 'shadcn-black', 'shadcn-gray'];
           if (!validThemes.includes(colorTheme)) {
             colorTheme = 'default';
           }
diff --git a/packages/dashboard/app/public/theme-data.css b/packages/dashboard/app/public/theme-data.css
index c0c71832df..1d9a69714f 100644
--- a/packages/dashboard/app/public/theme-data.css
+++ b/packages/dashboard/app/public/theme-data.css
@@ -2463,6 +2463,128 @@ FN-6756 adds shadcn color-family themes as exact zinc-neutral shadcn variants wi
   --accent-text: #fafafa;
 }
 
+/*
+FNXC:DashboardTheming 2026-06-20-00:00:
+Shadcn Gray is the fully-neutral zinc variant: it keeps the shadcn surfaces and button treatment while using only zinc/gray accent, CTA, and info tokens instead of red, blue, or other chroma.
+*/
+[data-color-theme="shadcn-gray"] {
+  --bg: #09090b;
+  --surface: #0c0c0e;
+  --card: #18181b;
+  --card-hover: #1f1f23;
+  --surface-hover: color-mix(in srgb, var(--surface) 90%, var(--text) 10%);
+  --border: #27272a;
+
+  --text: #fafafa;
+  --text-muted: #a1a1aa;
+  --text-dim: #52525b;
+
+  --todo: #a1a1aa;
+  --in-progress: #71717a;
+  --in-progress-rgb: 113, 113, 122;
+  --in-review: #71717a;
+  --triage: #a1a1aa;
+  --done: #52525b;
+
+  --color-success: #71717a;
+  --color-warning: #a1a1aa;
+  --color-error: #d4d4d8;
+  --color-muted: #71717a;
+
+  --font-primary: "Geist", "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
+  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;
+
+  --space-xs: 4px;
+  --space-sm: 6px;
+  --space-md: 10px;
+  --space-lg: 16px;
+  --space-xl: 20px;
+  --space-2xl: 28px;
+
+  --radius-sm: 4px;
+  --radius-md: 6px;
+  --radius-lg: 8px;
+  --radius-xl: 12px;
+  --radius: var(--radius-md);
+
+  --btn-padding: 6px 12px;
+  --btn-border-width: 1px;
+  --card-padding: 10px 12px;
+  --modal-padding: var(--space-md) var(--space-lg);
+  --header-padding: var(--space-sm) var(--space-lg);
+  --column-gap: var(--space-md);
+  --board-padding: var(--space-md) var(--space-lg);
+
+  --shadow-sm: 0 1px 2px color-mix(in srgb, #000000 18%, transparent);
+  --shadow-md: 0 1px 3px color-mix(in srgb, #000000 22%, transparent);
+  --shadow-lg: 0 4px 12px color-mix(in srgb, #000000 24%, transparent);
+  --shadow-glow: none;
+  --glow-success: none;
+  --glow-warning: none;
+  --glow-danger: none;
+  --focus-ring: 0 0 0 calc(var(--btn-border-width) * 3) color-mix(in srgb, var(--accent) 35%, transparent);
+  --focus-ring-strong: 0 0 0 calc(var(--btn-border-width) * 3) color-mix(in srgb, var(--accent) 45%, transparent);
+  --shadow: var(--shadow-lg);
+
+  --cta-bg: #71717a;
+  --cta-border: #71717a;
+  --cta-text: #ffffff;
+  --cta-bg-hover: #52525b;
+  --cta-border-hover: #52525b;
+  --cta-glow: none;
+  --logo-accent: var(--accent);
+  --color-info: #a1a1aa;
+  --accent: #a1a1aa;
+  --accent-text: #18181b;
+}
+
+[data-color-theme="shadcn-gray"][data-theme="light"] {
+  --bg: #ffffff;
+  --surface: #ffffff;
+  --card: #ffffff;
+  --card-hover: #f4f4f5;
+  --surface-hover: color-mix(in srgb, var(--surface) 92%, var(--text) 8%);
+  --border: #e4e4e7;
+
+  --text: #09090b;
+  --text-muted: #71717a;
+  --text-dim: #a1a1aa;
+
+  --todo: #71717a;
+  --in-progress: #52525b;
+  --in-progress-rgb: 82, 82, 91;
+  --in-review: #52525b;
+  --triage: #71717a;
+  --done: #a1a1aa;
+
+  --color-success: #52525b;
+  --color-warning: #71717a;
+  --color-error: #3f3f46;
+  --color-muted: #71717a;
+
+  --shadow-sm: 0 1px 2px color-mix(in srgb, var(--text) 8%, transparent);
+  --shadow-md: 0 1px 3px color-mix(in srgb, var(--text) 10%, transparent);
+  --shadow-lg: 0 4px 12px color-mix(in srgb, var(--text) 12%, transparent);
+  --shadow-glow: none;
+  --glow-success: none;
+  --glow-warning: none;
+  --glow-danger: none;
+  --focus-ring: 0 0 0 calc(var(--btn-border-width) * 3) color-mix(in srgb, var(--accent) 18%, transparent);
+  --focus-ring-strong: 0 0 0 calc(var(--btn-border-width) * 3) color-mix(in srgb, var(--accent) 28%, transparent);
+  --shadow: var(--shadow-lg);
+
+  --cta-bg: #52525b;
+  --cta-border: #52525b;
+  --cta-text: #ffffff;
+  --cta-bg-hover: #3f3f46;
+  --cta-border-hover: #3f3f46;
+  --cta-glow: none;
+  --logo-accent: var(--accent);
+  --color-info: #52525b;
+  --accent: #52525b;
+  --accent-text: #ffffff;
+}
+
 [data-color-theme="shadcn-blue"] .card.agent-active,
 [data-color-theme="shadcn-green"] .card.agent-active,
 [data-color-theme="shadcn-red"] .card.agent-active,
@@ -2471,7 +2593,8 @@ FN-6756 adds shadcn color-family themes as exact zinc-neutral shadcn variants wi
 [data-color-theme="shadcn-orange"] .card.agent-active,
 [data-color-theme="shadcn-yellow"] .card.agent-active,
 [data-color-theme="shadcn-mono"] .card.agent-active,
-[data-color-theme="shadcn-black"] .card.agent-active {
+[data-color-theme="shadcn-black"] .card.agent-active,
+[data-color-theme="shadcn-gray"] .card.agent-active {
   border-color: var(--accent);
   box-shadow: none;
   animation: none;
@@ -2485,7 +2608,8 @@ FN-6756 adds shadcn color-family themes as exact zinc-neutral shadcn variants wi
 [data-color-theme="shadcn-orange"][data-theme="light"] .card.agent-active,
 [data-color-theme="shadcn-yellow"][data-theme="light"] .card.agent-active,
 [data-color-theme="shadcn-mono"][data-theme="light"] .card.agent-active,
-[data-color-theme="shadcn-black"][data-theme="light"] .card.agent-active {
+[data-color-theme="shadcn-black"][data-theme="light"] .card.agent-active,
+[data-color-theme="shadcn-gray"][data-theme="light"] .card.agent-active {
   border-color: var(--accent);
   box-shadow: none;
   animation: none;
@@ -2499,7 +2623,8 @@ FN-6756 adds shadcn color-family themes as exact zinc-neutral shadcn variants wi
 [data-color-theme="shadcn-orange"] .btn,
 [data-color-theme="shadcn-yellow"] .btn,
 [data-color-theme="shadcn-mono"] .btn,
-[data-color-theme="shadcn-black"] .btn {
+[data-color-theme="shadcn-black"] .btn,
+[data-color-theme="shadcn-gray"] .btn {
   text-transform: none;
   letter-spacing: normal;
   font-weight: 500;
@@ -2522,7 +2647,9 @@ FN-6756 adds shadcn color-family themes as exact zinc-neutral shadcn variants wi
 [data-color-theme="shadcn-mono"] .btn-primary,
 [data-color-theme="shadcn-mono"] .btn-task-create,
 [data-color-theme="shadcn-black"] .btn-primary,
-[data-color-theme="shadcn-black"] .btn-task-create {
+[data-color-theme="shadcn-black"] .btn-task-create,
+[data-color-theme="shadcn-gray"] .btn-primary,
+[data-color-theme="shadcn-gray"] .btn-task-create {
   background: var(--cta-bg);
   border-color: var(--cta-border);
   color: var(--cta-text);
@@ -2546,7 +2673,9 @@ FN-6756 adds shadcn color-family themes as exact zinc-neutral shadcn variants wi
 [data-color-theme="shadcn-mono"] .btn-primary:hover,
 [data-color-theme="shadcn-mono"] .btn-task-create:hover,
 [data-color-theme="shadcn-black"] .btn-primary:hover,
-[data-color-theme="shadcn-black"] .btn-task-create:hover {
+[data-color-theme="shadcn-black"] .btn-task-create:hover,
+[data-color-theme="shadcn-gray"] .btn-primary:hover,
+[data-color-theme="shadcn-gray"] .btn-task-create:hover {
   background: var(--cta-bg-hover);
   border-color: var(--cta-border-hover);
   color: var(--cta-text);
@@ -2570,7 +2699,9 @@ FN-6756 adds shadcn color-family themes as exact zinc-neutral shadcn variants wi
 [data-color-theme="shadcn-mono"] .card,
 [data-color-theme="shadcn-mono"] .column,
 [data-color-theme="shadcn-black"] .card,
-[data-color-theme="shadcn-black"] .column {
+[data-color-theme="shadcn-black"] .column,
+[data-color-theme="shadcn-gray"] .card,
+[data-color-theme="shadcn-gray"] .column {
   border-width: var(--btn-border-width);
 }