Free Color Contrast Checker

Test foreground & background color contrast and see WCAG AA / AAA pass or fail for normal and large text.

Color Picker & Palette

Pick colors and generate palettes visually.

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Hex ↔ RGB Converter

Convert between HEX and RGB formats.

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HSL Converter

Tweak colors using HSL values.

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Based on WCAG 2.1 contrast ratios (4.5:1, 3:1, 7:1 and 4.5:1 thresholds).

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Contrast Ratio

Pick colors to calculate.

Normal Text AA: – | AAA: –

The quick brown fox jumps over the lazy dog.

Large Text AA: – | AAA: –

The quick brown fox

Recent Color Pairs

Enter colors or use pickers, then check contrast to see WCAG results.