HueCheck Palette Lab
HueCheck Palette Lab checks color contrast against WCAG 2.x and builds accessible color palettes.
It is built for product designers, front-end developers, design-system teams, and accessibility reviewers. Check one pair: give a text color and a background in hex, 8-digit hex with alpha, rgb(), hsl(), hwb(), lab(), lch(), oklab(), oklch(), color(display-p3 ...), or a CSS color name.
MCP connector
- Server URL
https://contrast-checker.zovo.one/mcp- Login
- None
- Protocol
- MCP 2025-11-25
- Instructions
Zovo Palette Lab computes exact WCAG 2.x colour contrast. tests one text/background pair and suggests the nearest passing colours; tests each pair in a palette; builds a 50-950 OKLCH scale with documented AA/AAA steps and CSS/Tailwind downloads. Ratios are truncated, rounded down. APCA is informational only.
Tools
Reads data3
Skills
None in the store listings or on the server