Contrast preview
The ratio and WCAG levels update instantly.
Sample text
Good contrast makes an interface easier to read.
Contrast result
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The ratio and WCAG levels update instantly.
Colors used
Copy the values and quickly review whether the combination is safe for UI and reading.
Text
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Background
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Contrast checker
Check contrast between text and background, review WCAG ratio, and validate AA or AAA directly in the browser.
Review contrast with WCAG reference
Useful for buttons, text on backgrounds, cards, banners, and any interface where readability matters.
Use cases
When a contrast checker is useful
Accessible interfaces
Helpful when you need to confirm that text remains readable on a given background.
Color systems
Useful for validating combinations before turning them into tokens or final styles.
Quick reviews
Useful when you want to compare color pairs and decide whether to keep or adjust them.
FAQ
Common questions about contrast
Does it use WCAG criteria?
Yes. The tool shows the ratio and whether it passes AA or AAA for normal and large text.
Does it work for text and background?
Yes. Compare both colors and see the result instantly.
Does it require image uploads?
No. Everything works directly in the browser with the selected colors.
Can I swap the colors?
Yes. There is a quick action to invert text and background.
Keep exploring