Chart Color System
io.github.socraticstatic/chart-color-system · v0.1.1 · MCP 2025-11-25
Solve, audit and simulate colorblind-safe chart palettes. WCAG contrast, OKLab ΔE. Read-only.
Reachability
reachable
checked 2026-09-20 05:31 UTC
Registry status active
Tools pinned 4
5515f2cac5ea
Tools last changed
unchanged since first capture 2026-09-17
Repo last push 2026-09-16
GitHub stars 0
Provenance
Registry namespace io.github.socraticstatic
(GitHub-account verified by the official registry)
Repository
github.com/socraticstatic/visualizations
Remote endpoints
https://chart-color-mcp.vercel.app/mcp (streamable-http)
Observed changes
| When (UTC) | Event | Detail |
|---|---|---|
| 2026-09-17 05:30 | first capture | 4 tools pinned |
Pinned tool definitions (4)
| Tool | Description |
|---|---|
| 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 locked as anchors in slot order. Returns the palette, the worst pair... |
| audit_palette | Audit existing chart colors for accessibility: pairwise OKLab separation under normal vision, deuteranopia, protanopia, tritanopia and achromatopsia, plus WCAG 2.2 non-text contrast (3:1) of every color against the chart background.... |
| simulate_palette | Show what each color looks like to readers with deuteranopia, protanopia, tritanopia or achromatopsia (published Machado 2009 matrices), so an assistant can describe or render the palette as a colorblind reader sees it. |
| 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 background-contrast audit (pairwise separation is not judged for ramps). |
Get alerted when this changes.
Email the moment io.github.socraticstatic/chart-color-system drifts, dies, or revives.
Status badge
[](https://toolpin.dev/servers/io.github.socraticstatic/chart-color-system)
Maintain this server? Add the badge to your README. It links your users to this live status page.