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Ensure your designs are accessible to everyone. Check contrast ratios against WCAG 2.1 standards for AA and AAA compliance.
Contrast Checker verifies color contrast ratios against WCAG 2.1 standards to ensure your designs are accessible.
We calculate the relative luminance of foreground and background colors to determine the contrast ratio based on the official WCAG 2.1 contrast formula.
It's the standard accessibility level requiring a 4.5:1 ratio for normal text.
Yes, high contrast is essential for users with visual impairments.
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