io.github.socraticstatic/chart-color-system

up checked 2026-11-11T08:38:16.153Z

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Publisher-provided title

Chart Color System

Publisher-provided description

Solve, audit and simulate colorblind-safe chart palettes. WCAG contrast, OKLab ΔE. Read-only.

Summary by lookupd

Audits, builds, simulates and generates colorblind-safe chart palettes using perceptual color math and WCAG contrast checks, without…

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http chart-color-system https://chart-color-mcp.vercel.app/mcp

Codex, remote (streamable-http)

codex mcp add chart-color-system --url https://chart-color-mcp.vercel.app/mcp

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

{
  "mcpServers": {
    "chart-color-system": {
      "url": "https://chart-color-mcp.vercel.app/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

• solve_palette Generate a categorical chart palette of n colors (1-12) that maximizes perceptual separation under normal vision and colorblindness, with the given brand colors
• audit_palette Audit existing chart colors for accessibility: pairwise OKLab separation under normal vision, deuteranopia, protanopia, tritanopia and achromatopsia, plus WCAG
• simulate_palette Show what each color looks like to readers with deuteranopia, protanopia, tritanopia or achromatopsia (published Machado 2009 matrices), so an assistant can des
• build_ramp Build an evenly spaced perceptual (OKLab) color scale: sequential from start to end, or diverging from start through mid to end. Returns the steps and a backgro

Details

• Version: 0.1.2
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 258 ms
• First indexed: 2026-11-01T09:55:48.046Z
• Last seen in registry: 2026-11-01T09:55:48.062Z
• Repository: https://github.com/socraticstatic/Visualizations
• Website: https://socraticstatic.github.io/Visualizations/mcp-docs.html

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• 62071 servers
• Last crawl: 2026-11-11T16:39:06.253Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp