Color Contrast Checker
Check WCAG AA/AAA color contrast ratios. Live text preview, color blindness simulation, accessibility badges.
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L: 1.0000
6.70:1
AA
L: 0.1067
WCAG 2.1 Accessibility Levels
Normal Text (≥4.5)
✓AA
✗AAA
Large Text (≥3)
✓AA
✓AAA
UI Components (≥3)
✓AA
1:13:14.5:17:121:1
Live Preview
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Button
Quick Presets
▶Color Blindness Simulation
The quick brown fox jumps over the lazy …
Deuteranopia (Red-Green)
10.00:1
✓AA
The quick brown fox jumps over the lazy …
Protanopia (Red-Green)
9.16:1
✓AA
The quick brown fox jumps over the lazy …
Tritanopia (Blue-Yellow)
3.36:1
✗AA
WCAG 2.1 Reference
• Normal text — AA: ≥4.5:1 / AAA: ≥7:1
• Large text (≥18pt or ≥14pt bold) — AA: ≥3:1 / AAA: ≥4.5:1
• UI components & graphics — AA: ≥3:1
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