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WCAG colour contrast checker

Vérifiez si vos couleurs sont lisibles et accessibles.

Testez les couleurs de premier plan et d’arrière-plan, prévisualisez le résultat, vérifiez WCAG AA et AAA puis copiez des valeurs HEX ou des variables CSS propres.

La lisibilité des couleurs compte.

This sample updates as you change the foreground and background colours.

Contraste ratio
21.00
Réussi
Réussi
AA normal text · 4.5:1
Réussi
AA large text · 3:1
Réussi
AAA normal text · 7:1
Réussi
AAA large text · 4.5:1

Copier the colour pairing

Utiliser this in CSS, a design system, or a quick accessibility note.

:root {
  --contrast-text: #111827;
  --contrast-background: #FFFFFF;
}

Accessible exemples to try

Start from a real palette or a safe high-contrast pairing, then adjust it for your project.

What the score means

The higher the ratio, the easier the combination is to read for more people and more display conditions.

AA normal text

Utiliser at least 4.5:1 for body copy, navigation, links, buttons and most interface text.

AA large text

Large text can pass at 3:1, but higher contrast usually still feels clearer and more professional.

AAA text

7:1 is the stronger target for long reading, critical information, accessibility-first products and dashboards.