All tools
Accessibility
Color Contrast Checker
Test foreground and background colors before using them in a website, landing page or brand system.
Sample heading
This is sample paragraph text so you can see whether the color pairing is readable.
Contrast ratio
19.56:1
AA normal text: Pass
AA large text: Pass
AAA: Pass
How it works
The checker calculates relative luminance and contrast ratio, then compares it with common WCAG AA and AAA targets.
Why use this?
Accessible color choices make content easier to read and reduce design issues before development.
FAQ
What ratio is usually acceptable?
For normal text, WCAG AA targets 4.5:1. Large text can pass AA at 3:1.
Can brand colors still fail?
Yes. A strong brand palette still needs accessible pairings for text, buttons and backgrounds.
