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Zovo Palette Lab

io.github.theluckystrike/contrast-checker · v1.0.0

WCAG contrast & palettes

Connect Remote server

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

Tools 3 found in our last check

  • 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 (e.g. "does white text on #F59E0B pass WCAG AA", "contrast ratio of #767676 on white", "what text color for this backg…

  • 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 of these colors can I use for text", "accessible color palette checker". Returns the full pairwise WCAG 2.x contrast ma…

  • 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 #1E6FD9", "tailwind color palette generator", "accessible color palette for my website". Builds an 11-step 50-950 tonal sca…

Details

Endpointhttps://contrast-checker.zovo.one/mcp (Streamable HTTP)
First published22 Oct 2026
Last updated22 Oct 2026
Registry nameio.github.theluckystrike/contrast-checker

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