Colour Converter & Contrast
Hex / RGB / HSL / OKLCH conversion plus WCAG AA/AAA contrast pass-fail.
100% client-side · no data leaves this device
Sample text on background
Contrast ratio
17.06
Normal AA: PassNormal AAA: PassLarge AA: PassLarge AAA: Pass
WCAG thresholds — normal text: 4.5 (AA) / 7 (AAA); large text: 3 (AA) / 4.5 (AAA).