`color_contrast`

Pack: color · Connect: https://pipeworx.io/mcp (see Connect below for a single-pack URL)

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/color_contrast for the schema, then POST the same URL with its arguments for the data.

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

Parameters

Name	Type	Required	Description
`foreground`	string	yes	Foreground/text color.
`background`	string	yes	Background color.

Example call

Arguments

{
  "foreground": "#ffffff",
  "background": "#000000"
}

curl

curl -X POST https://gateway.pipeworx.io/color/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"color_contrast","arguments":{"foreground":"#ffffff","background":"#000000"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('color_contrast', {
  "foreground": "#ffffff",
  "background": "#000000"
});

More examples

{
  "foreground": "rgb(100,150,200)",
  "background": "hsl(0,0%,95%)"
}

Connect

Add this to your MCP client config — every tool in the catalog, including this one — or use one-click install buttons:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://pipeworx.io/mcp"
    }
  }
}

Connect to just the color pack

{
  "mcpServers": {
    "color": {
      "url": "https://gateway.pipeworx.io/color/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

color_contrast