Colour Contrast Checker
Utilisez Colour Contrast Checker en ligne pour obtenir un résultat rapide et clair.
Comment utiliser Colour Contrast Checker
- Saisissez ou choisissez les valeurs nécessaires.
- Lancez l’action principale pour calculer, convertir ou générer le résultat.
- Vérifiez, copiez ou téléchargez le résultat.
Helpful guidance, privacy and accuracy
Utilisations courantes
Calculate WCAG contrast ratio for two HEX colours. The calculation or transformation runs in this browser. Your entered values are not uploaded to Sellible.
Colour Contrast Checker is useful for individuals, students, tradespeople, freelancers and businesses that need this specific result without installing additional software.
Précision et conseils pratiques
Enter values in the units shown, keep source measurements consistent and retain enough precision until the final step. Estimates can be affected by rounding, product specifications, local practice, taxes, fees or site conditions. This utility supports planning; it does not replace professional advice or regulatory checks.
Confidentialité et traitement
This tool runs locally in your browser and its working values are not sent to Sellible. Account, security and aggregate usage records are handled as described in the privacy information.
Questions fréquentes
Is Colour Contrast Checker free to use?
Yes. This browser-based tool is free and does not consume file-processing credits.
Does Colour Contrast Checker upload my information?
No. The working values remain in your browser for this tool.
How accurate is Colour Contrast Checker?
The tool uses deterministic browser or server processing. Check source values and review important outputs before relying on them.
Can I use Colour Contrast Checker on a phone?
Yes. Sellible is responsive and the same tool works on current phone, tablet and desktop browsers.