Accessible Contrast Checker
Ensure your color combinations meet WCAG accessibility standards. Test contrast ratios, get compliance reports, and discover accessible alternatives.
Color Selection
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WCAG Guidelines
AAA: 7:1 (normal) / 4.5:1 (large) - Enhanced
AA: 4.5:1 (normal) / 3:1 (large) - Minimum
Fail: Below minimum requirements
Understanding Color Accessibility
WCAG Standards
Web Content Accessibility Guidelines (WCAG) define the standards for making web content accessible. Level AA is the legal requirement in many jurisdictions.
Contrast Ratios
Contrast ratio measures the difference in luminance between two colors. Higher ratios mean better readability for users with visual impairments.
Large Text
Large text (18pt+ regular or 14pt+ bold) has lower contrast requirements because it's easier to read than smaller text.