Color Contrast Checker
Check color contrast ratios for WCAG accessibility compliance
Preset Combinations
Sample Heading
The quick brown fox jumps over the lazy dog. This is a sample of how your text will look with these color choices.
21.00:1
WCAG 2.1 Compliance
Normal Text(< 18px or < 14px bold)
AA ✓(4.5:1)
AAA ✓(7:1)
Large Text(≥ 18px or ≥ 14px bold)
AA ✓(3:1)
AAA ✓(4.5:1)
UI Components(Icons, borders, etc.)
AA ✓(3:1)
AAA - ExcellentFor normal text(16px regular)
WCAG Accessibility Guidelines
Level AA (Minimum)
Normal text: 4.5:1 ratio. Large text (18px+ or 14px+ bold): 3:1 ratio. Required for most accessibility standards.
Level AAA (Enhanced)
Normal text: 7:1 ratio. Large text: 4.5:1 ratio. Provides better accessibility for users with vision impairments.
UI Components
Non-text elements like icons and borders need a minimum 3:1 ratio against adjacent colors.
Testing Tips
Test with real content, not just sample text. Consider users with color blindness and low vision.