Practical
WCAG Color Contrast Checker
Check colour contrast ratio against WCAG AA and AAA accessibility standards
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WCAG contrast requirements ensure text and UI elements are readable for people with low vision. AA standard requires 4.5:1 for normal text and 3:1 for large text.
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Tip: Never rely solely on colour to convey information - use patterns, labels, or icons alongside colour for full accessibility.
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Fun Fact
Approximately 8% of men and 0.5% of women have colour vision deficiency. Black text on white is universally readable.
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