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Check Colour Contrast for Accessibility

Convert colours to get RGB values for use in contrast ratio tools β€” WCAG compliance for accessible design.

Nid oes angen mewngofnodi

Accepts: HEX (#fff or #ffffff), RGB (255, 255, 255), or HSL (360, 100%, 50%)

Presets:
HEX#14B8A6
RGBrgb(20, 184, 166)
HSLhsl(173, 80%, 40%)
HSVhsv(173, 89%, 72%)
CMYKcmyk(89%, 0%, 10%, 28%)
CSS RGB20, 184, 166

Lightness scale

Click any swatch to switch to that shade

Accessibility tips

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WCAG 2.1 requires 4.5:1 contrast between text and background (AA), or 7:1 for enhanced (AAA) accessibility.

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Get the RGB values for both your text and background colours here, then paste them into a contrast checker like WebAIM's Contrast Checker.

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Use the lightness scale to find a shade of your brand colour that passes contrast requirements while staying on-brand.

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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.

Sut Mae'n Gweithio

1
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Get your result instantly. Nothing is stored after you leave the page β€” complete privacy.

Pam defnyddio ein un ni?

βœ“Hollol rhad ac am ddim - dim costau cudd, byth
βœ“Nid oes angen cyfrif, e-bost na mewngofnodi
βœ“Nid yw ffeiliau byth yn gadael eich dyfais
βœ“Dim cyfyngiadau maint ffeil o gwbl
βœ“Dim dyfrnodau ar unrhyw allbwn

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