Check Colour Contrast for Accessibility
Convert colours to get RGB values for use in contrast ratio tools — WCAG compliance for accessible design.
Accepts: HEX (#fff or #ffffff), RGB (255, 255, 255), or HSL (360, 100%, 50%)
Lightness scale
Click any swatch to switch to that shade
Accessibility tips
WCAG 2.1 requires 4.5:1 contrast between text and background (AA), or 7:1 for enhanced (AAA) accessibility.
Get the RGB values for both your text and background colours here, then paste them into a contrast checker like WebAIM's Contrast Checker.
Use the lightness scale to find a shade of your brand colour that passes contrast requirements while staying on-brand.
Teal and mid-range colours often fail contrast checks against white. Try L=30–40% in HSL for dark enough versions that pass 4.5:1.
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