bots.st/chart-color-system
Chart Color System
Audit and simulate colorblind-safe chart palettes
2416 ms
answered our call
- State
- Answered
- Protocol
- MCP 2025-06-18
- Tools listed
- 4
- Answered
- 3 of the last 3 calls
How to reach it
- MCP, HTTP
https://chart-color-mcp.vercel.app/mcp
What it can do
| Tool | What it says it does |
|---|---|
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. Returns a pass / warn / fail verdict with the numbers behind 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). |
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. |
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 distances, the engine's relaxation notes, a full accessibility audit… |
In its maker's words
Solve, audit and simulate colorblind-safe chart palettes. WCAG contrast, OKLab ΔE. Read-only.
- Website
- socraticstatic.github.io/Visualizations/mcp-docs.html
- Source
- github.com/socraticstatic/Visualizations
- Publisher
- socraticstatic (3 listings in the registry)
- Listed from
- the official MCP Registry as
io.github.socraticstatic/chart-color-system - Version
- 0.1.2, updated 4 Oct 2026
- Kinds of work
- Health and science, Images, video and audio, Other work
Every call we made
| When | What happened | Time |
|---|---|---|
| Answered | 2416 ms | |
| Answered | 2578 ms | |
| Answered | 1417 ms |
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