Creative Design
HTML app
Color Contrast Checker
Make your text accessible to everyone.
HTML appInstant download
What you get
Check any text and background pair against WCAG AA and AAA contrast standards.
Highlights
- WCAG AA and AAA pass/fail at a glance
- Live text preview
- Exact contrast ratio
- Works offline
Format & delivery
Delivered as a HTML app. Open it in any modern browser — no install, no account, no server. It works offline, and the file is yours to keep.
Immediately after your Lightning payment settles, the download link appears at checkout. No account, no email, no waiting for a message.
How buying works
Pay from any Lightning-enabled Bitcoin wallet. The checkout creates an invoice for the fixed USD price and unlocks the file when the payment settles. An on-chain fallback is available. If you do not have Bitcoin yet, the no-card guide explains the shortest route.
Category: Creative Design · Product ID: color-contrast-checker
