Professional Contrast Checker
Validate color combinations against WCAG accessibility standards with real-time analysis, compliance indicators, and professional improvement suggestions for optimal accessibility.
Color Selection
HEX: #000000
RGB: 0, 0, 0
HSL: 0°, 0%, 0%
HEX: #ffffff
RGB: 255, 255, 255
HSL: 0°, 0%, 100%
Contrast Analysis
21:1
Contrast Ratio
Sample Text Preview
Normal Text • Large Text
Normal Text • Large Text
WCAG Compliance
AA Normal
AA Large
AAA Enhanced
Perfect
Accessibility Rating
Improvement Suggestions
Perfect Contrast Ratio
Your current color combination meets all WCAG standards excellently.
Suggested Improvements
Understanding WCAG Standards
4.5:1
WCAG AA Normal
Minimum contrast for normal text (under 18pt or 14pt bold)
3:1
WCAG AA Large
Minimum contrast for large text (18pt+ or 14pt+ bold)
7:1
WCAG AAA Enhanced
Enhanced contrast for maximum accessibility