Color Contrast Checker
Check text readability against WCAG AA/AAA contrast standards for accessible design.
100% client-side — your data never leaves this device.
Large heading sample
Normal body text — The quick brown fox jumps over the lazy dog. 0123456789
Smaller caption text for secondary UI copy.
Contrast ratio
17.85:1
AA Normal text (≥ 4.5:1)Pass
AA Large text (≥ 3:1)Pass
AAA Normal text (≥ 7:1)Pass
AAA Large text (≥ 4.5:1)Pass
UI components / graphics (≥ 3:1)Pass
WCAG 2.x quick guide
- Normal text: under ~18pt / 14pt bold
- Large text: ≥18pt or ≥14pt bold
- AA is the common legal/accessibility target
About this tool
Check colors for readable text under WCAG 2.x guidelines. AA is the common compliance target for body text.