Color Palette

Name: Color Palette
Author: openclaw-ai

Create harmonious color palettes based on theory and convert colors between formats like hex, RGB, and HSL.

CommunityOnlineNo sign-inGlobalFreeCan modify data

What it can do

Generate Palette: Generate a harmonious color palette using color theory. Provide a base color, mood, or both. Returns an array of colors with hex, rgb, hsl, name, and CSS variable. Harmony modes use
Contrast Check: Check WCAG 2.1 accessibility contrast ratio between two colors. Returns the contrast ratio, AA pass/fail (4.5:1 normal, 3:1 large), AAA pass/fail (7:1 normal, 4.5:1 large), and suggest
Color Convert: Convert a color between formats: hex, rgb, hsl, and CSS named colors (140 standard names). Input any format and optionally specify the target format. Returns all formats if to_format is

What data it sees

Do you need an account

No: the server works without sign-in

Create harmonious color palettes based on theory and convert colors between formats like hex, RGB, and HSL. Ensure designs are inclusive by checking WCAG accessibility contrast ratios and receiving improvement suggestions. Generate production-ready CSS gradients and quickly find matching Tailwind CSS shades to accelerate styling workflows.

How to connect

How to connect Color Palette to Claude

The server address to paste into Claude settings:

https://color-palette--openclaw-ai.run.tools

Open Claude (claude.ai or the desktop app).
Go to Settings → Connectors.
Click Add custom connector.
Paste the server address copied below into Remote MCP server URL and click Add.
In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Color Palette to ChatGPT

The server address to paste into ChatGPT settings:

https://color-palette--openclaw-ai.run.tools

Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
Open Settings → Connectors and click Create.
Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Color Palette to Cursor

The server address to paste into Cursor settings:

https://color-palette--openclaw-ai.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (5)

Raw names from tools/list. Only developers need these.

generate_palette	Generate a harmonious color palette using color theory. Provide a base color, mood, or both. Returns an array of colors with hex, rgb, hsl, name, and CSS variable. Harmony modes use HSL rotation (complementary=180°, analogous=30°, triadic=120°, etc.).
contrast_check	Check WCAG 2.1 accessibility contrast ratio between two colors. Returns the contrast ratio, AA pass/fail (4.5:1 normal, 3:1 large), AAA pass/fail (7:1 normal, 4.5:1 large), and suggestions for improving contrast if it fails.
color_convert	Convert a color between formats: hex, rgb, hsl, and CSS named colors (140 standard names). Input any format and optionally specify the target format. Returns all formats if to_format is omitted.
css_gradient	Generate ready-to-use CSS gradient code from an array of hex colors. Supports linear, radial, and conic gradients. Returns the CSS property value and a description of the visual effect.
tailwind_colors	Look up Tailwind CSS v3 color values. Provide color_name to get all shades (50–950), or provide closest_to (a hex value) to find the nearest Tailwind color and shade.