Zovo Palette Lab

WCAG contrast & palettes

A WCAG color contrast checker and accessible color palette generator for designers, front-end developers and accessibility reviewers. Check one pair: give a text colour and a background in hex (with or without #), 8-digit hex with alpha, rgb(), hsl(), hwb(), lab(), lch(), oklab(), oklch(), color(display-p3 ...) or a CSS colour name.

What you can ask

Check if white text on #F59E0B passes WCAG AA for body text and suggest the closest passing color
Example path ·

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

1 in the ChatGPT listing