Contrast Checker
Check WCAG 2.0 contrast ratios between two colors
Colors
Preview
The five boxing wizards jump quickly
ABCDEFGHIJKLMNOPQRSTUVWXYZ · 0123456789 · !@#$%^&*()
Results
6.0:1 ratio
AA Normal✓ Pass
AA Large✓ Pass
AAA Normal✗ Fail
AAA Large✓ Pass
About WCAG Contrast
AA Normal — 4.5:1 minimum for regular text (below 18pt bold or 24pt regular). AA Large — 3:1 for large text (18pt+ bold or 24pt+). AAA Normal — 7:1 enhanced for regular text. AAA Large — 4.5:1 enhanced for large text.
Contrast ratio is calculated using the WCAG 2.0 relative luminance formula. Values range from 1:1 (identical colors) to 21:1 (black on white).