Color Utilities

live UtilityDesign

Convert colors between HEX/RGB/HSL, compute WCAG contrast ratios (AA/AAA), and find the nearest CSS named color. Keyless, offline.

3 tools
0ms auth
free tier 50 calls/day

Tools

color_convert

Convert a color (HEX, rgb(), hsl(), or a CSS name) to all formats: HEX, RGB and HSL. Keyless, offline.

No parameters required.

▶ Try it
color_contrast

Compute the WCAG 2.1 contrast ratio between two colors and whether it passes AA/AAA for normal and large text. Keyless, offline.

No parameters required.

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nearest_color

Find the nearest CSS named color to a given color (Euclidean RGB distance). Keyless, offline.

No parameters required.

▶ Try it

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/color/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/color/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"color_convert","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("color_convert", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("convert colors between hex/rgb/hsl, compute wcag contrast ratios (aa/aaa), and find the nearest css named color");