Contrast Checker
Check WCAG accessibility compliance for text and background color combinations.
Aa
Large Text (24px+)
Normal Text (16px)
Small Text (14px)
Contrast Ratio
0.00:1
Poor
WCAG Compliance
Level AA (Minimum)
Normal Text
Requires 4.5:1
Large Text
Requires 3:1
Level AAA (Enhanced)
Normal Text
Requires 7:1
Large Text
Requires 4.5:1
Suggested Combinations
About WCAG Guidelines
WCAG 2.1 (Web Content Accessibility Guidelines) provides recommendations for making web content more accessible.
Level AA is the standard level that most websites should aim for. It requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text.
Level AAA is the highest level of conformance and requires a contrast ratio of at least 7:1 for normal text and 4.5:1 for large text.
Large text is defined as 18pt (24px) or larger, or 14pt (18.5px) bold or larger.