WCAG Color Contrast Checker - AA/AAA Palette Fixer

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About WCAG Color Contrast Checker

Check WCAG contrast fast

Test foreground and background colors against WCAG AA/AAA guidelines for normal and large text.

How it works

Pick your foreground and background colors.
Review the contrast ratio and AA/AAA pass or fail results.
Apply suggested compliant colors and export CSS variables.

Key features

Contrast math: WCAG 2.1 compliant ratio calculations.
Nearest fixes: suggested color tweaks to pass AA or AAA.
Palette export: copy CSS variables like --primary and --on-primary.

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