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Color Contrast Checker
Text nobody can read fails WCAG — and increasingly, the law treats it that way.
Text nobody can read fails WCAG — and increasingly, the law treats it that way. Enter a text and background colour and get the exact contrast ratio, pass/fail for AA and AAA at normal and large text sizes, and, when the pair fails, the closest adjustment of your text colour that passes.
The Color Contrast Checker on YouTubeDownload works on the file itself: WCAG contrast ratios with AA/AAA verdicts and a passing fix. Bring the image in once, finish the job here alongside the rest of the image bench, and download the result; the working copy is deleted the moment your download finishes.
How to use the color contrast checker
- Enter your figures above — the result updates live as you type, and the defaults are sensible starting points.
- Everything is calculated right here in your browser: nothing you type is uploaded, stored or shared.
- Download the result where a download button is offered, or just copy the numbers you need.
Why people pick this over other converters
- No account, ever. Most big converter sites push sign-ups and paid tiers for basic jobs. Here the tool just works.
- No watermarks and no job counters on standard tools — fair-use rate limits keep things fast for everyone — and a generous 2 GB upload limit.
- Private by design: your file is processed in a temporary folder and deleted the moment your download finishes. Nothing is stored or shared.
- Fast: this page is a fraction of the size of the ad-heavy alternatives, and the same account-free toolbox has 530 other tools when you need them.
FAQ
What ratio do I need?
WCAG AA — the level most laws and contracts point at — needs 4.5:1 for body text and 3:1 for large text (18pt+, or 14pt bold+). AAA needs 7:1 and 4.5:1. If you are choosing one target, AA is it.
Is this really free?
Yes — completely. A short ad before processing keeps every tool free; no account, subscription or credits are ever required.
What happens to my file?
It is processed in a temporary folder and deleted the moment your download finishes. We never store, view or share uploads.
Do I need to install anything?
No. Everything runs in your browser session against our servers — any phone, tablet or computer works.
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