io.github.theluckystrike/contrast-checker

up checked 2026-11-11T12:37:33.224Z

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Publisher-provided title

Zovo Palette Lab

Publisher-provided description

WCAG contrast & palettes

Summary by lookupd

Checks WCAG contrast for color pairs and palettes, and generates accessible color scales from a single hex color.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http contrast-checker https://contrast-checker.zovo.one/mcp

Codex, remote (streamable-http)

codex mcp add contrast-checker --url https://contrast-checker.zovo.one/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "contrast-checker": {
      "url": "https://contrast-checker.zovo.one/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (3 tools)

Publisher-provided text

• check_color_contrast Use this when the user wants to know whether a text, icon or border colour has enough contrast against a background: a WCAG contrast checker for one colour pair
• check_palette_contrast Use this when the user has a colour palette (2 to 12 colours) and wants to know which combinations are accessible: "check contrast of my color palette", "which
• generate_accessible_palette Use this when the user wants an accessible colour scale or palette built from one colour: "color palette generator from hex", "generate a 50-950 scale from #1E6

Details

• Version: 1.0.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 510 ms
• First indexed: 2026-11-01T09:57:06.879Z
• Last seen in registry: 2026-11-01T09:57:06.879Z
• Website: https://contrast-checker.zovo.one/

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• 62092 servers
• Last crawl: 2026-11-11T17:38:11.606Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp