Contrast Checker MCP Server: Install & Setup

Install Contrast Checker in Claude Code

Claude Code

claude mcp add contrast-checker -- npx -y contrast-checker-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "contrast-checker": {
      "command": "npx",
      "args": [
        "-y",
        "contrast-checker-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the Contrast Checker MCP server do?

MCP - WCAG 2.1 color contrast checker - contrast ratios, compliance and accessible color suggestions

Is the Contrast Checker MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Contrast Checker run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Contrast Checker to Claude Code?

Run: claude mcp add contrast-checker -- npx -y contrast-checker-mcp

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