dev.workers.mike-tusa.contrastkit/contrastkit

up checked 2026-11-11T04:38:20.470Z

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Publisher-provided title

ContrastKit

Publisher-provided description

WCAG color contrast checks, nearest accessible color, CSS color conversion and palette pair checks.

Summary by lookupd

Checks WCAG contrast ratios, converts CSS colors, and suggests accessible color alternatives for failing text and background pairs.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http contrastkit https://contrastkit.mike-tusa.workers.dev/mcp

Codex, remote (streamable-http)

codex mcp add contrastkit --url https://contrastkit.mike-tusa.workers.dev/mcp

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

{
  "mcpServers": {
    "contrastkit": {
      "url": "https://contrastkit.mike-tusa.workers.dev/mcp"
    }
  }
}

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

Tools (4 tools)

Publisher-provided text

• check_contrast Compute the WCAG 2.x contrast ratio between a text (foreground) color and a background color, with pass/fail for AA, AA large text, AAA, AAA large text and non-
• suggest_accessible_color For a failing color pair, find the closest color (same hue and saturation, lightness changed as little as possible) that meets the chosen WCAG level. Adjust the
• convert_color Convert a CSS color to hex, rgb() and hsl(), with its relative luminance, its contrast on white and on black, and the better text color (black or white) to put
• check_palette Contrast ratio for every pair of 2 to 12 colors (up to 66 pairs), highest first, each flagged against the chosen WCAG level. Use it to see which brand colors ca

Details

• Version: 0.1.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 272 ms
• First indexed: 2026-11-01T09:01:59.416Z
• Last seen in registry: 2026-11-01T09:01:59.416Z
• Website: https://contrastkit.mike-tusa.workers.dev/

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