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WCAG Colour Contrast Checker
Check text and background colours against WCAG contrast ratios, including AA and AAA thresholds. Calculates locally in your browser.
Sample heading · Sample body text
WCAG 2.2 contrast thresholds: AA normal text 4.5:1; AA large text 3:1; AAA normal text 7:1; AAA large text 4.5:1. This checker does not assess contrast over photography, transparency or graphical elements.
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