Color Contrast Checker: Make Every Word Easy to Read
Test your text and background colors against WCAG standards in seconds and see which pairs pass, which fail, and how to fix the ones that strain eyes.
Free with a Brainito account. No credit card required.
Instant WCAG Results
See pass or fail against WCAG AA and AAA levels for normal and large text in a single glance.
Fix Suggestions Built In
Failing pairs come with nearby shades that pass, so you keep your brand look and gain clarity.
Readable for Every Visitor
Good contrast helps low-vision users, phones in bright sunlight, and everyone skimming in a hurry.
Frequently Asked Questions
What contrast ratio does my text need to pass?
WCAG requires at least 4.5 to 1 for normal text and 3 to 1 for large text at the AA level. AAA raises those to 7 to 1 and 4.5 to 1. The checker tests your color pairs against both levels automatically.
Does the checker scan my whole website?
You enter your site and the checker reviews the visible text and background color pairs it finds on the page, flagging combinations that fall below WCAG thresholds so you know exactly what to adjust.
Is the Color Contrast Checker free?
Yes. The checker is free in 2026 once you create a Brainito account. Test as many color pairs and pages as you like while you tune your palette, and recheck after every design change.
Check your color contrast against WCAG standards in seconds
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