100% Free Online Web Tool
Developer
WCAG Contrast Checker
Check color contrast ratio for WCAG accessibility compliance.
Choose Colors
Large Text
Normal size sample text
Small text sample
4.83:1
Contrast Ratio
AA Large Text
PASS (need 3:1)AA Normal Text
PASS (need 4.5:1)AAA Large Text
PASS (need 4.5:1)AAA Normal Text
FAIL (need 7:1)