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Swatch

com.clawhard/swatch · v1.1.0

Check WCAG color contrast, fix failing colors, build 50-950 palettes. No account.

Connect Remote server

Terminal
claude mcp add --transport http swatch https://swatch.clawhard.com/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "swatch": {
      "url": "https://swatch.clawhard.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "swatch": {
      "type": "http",
      "url": "https://swatch.clawhard.com/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://swatch.clawhard.com/mcp

Tools 4 found in our last check

  • swatch_check_contrast

    Use when the user asks whether a color combination is readable or accessible, passes WCAG AA or AAA, or has enough contrast (text on a background, button, badge, link color), or what a color is in another format. Returns the exact contrast ratio, pass or fail for normal text, la…

  • swatch_fix_contrast

    Use when a color pair fails contrast and the user wants the smallest change that makes it pass, such as "make this gray text accessible without changing the look". Returns the closest text color on that background that reaches the target (AA, AAA, AA-large or ui), and separately…

  • swatch_make_scale

    Use when the user asks for a palette, shades, tints, a design-token scale or a Tailwind-style 50 to 950 ramp from a brand color. Returns 11 steps that keep the hue, with the hex, contrast on white and on black, and the best text color for each step. Example: {"color": "#ff5a1f",…

  • swatch_check_pairs

    Use when the user has a whole design system, theme or stylesheet and wants every text and background pair checked for accessibility in one go. Takes up to 50 pairs and returns the ratio and AA and AAA results for each, with a count of failures. Example: {"pairs": [{"foreground":…

Details

Endpointhttps://swatch.clawhard.com/mcp (Streamable HTTP)
First published9 Nov 2026
Last updated9 Nov 2026
Registry namecom.clawhard/swatch

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