Free Tools
Color Contrast Checker (WCAG & APCA)
Check color contrast for accessibility against both WCAG 2.1 ratios and APCA Lc values. Live sample preview, instant pass/fail badges.
Sample text
The quick brown fox jumps over the lazy dog
The quick brown fox jumps over the lazy dog
The quick brown fox jumps over the lazy dog
Contrast ratio
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WCAG 2.1 thresholds
Normal text needs AA ≥ 4.5:1, AAA ≥ 7:1. Large text (18pt+ or 14pt+ bold) needs AA ≥ 3:1, AAA ≥ 4.5:1. UI components need ≥ 3:1.
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