Web utility
Contrast Checker
Short answer: Use this free contrast checker to enter two colors and get pass or fail accessibility result instantly.
Tool input/output
Input: Two colors
Output: Pass/fail accessibility result
How it works
This tool takes two colors, applies a simple browser-based calculation or formatting rule, and returns pass or fail accessibility result. It is built for quick checks where you want a direct answer without creating an account, opening a spreadsheet, or reading through a long guide.
Example
Example: enter two colors and the tool returns pass or fail accessibility result.
When to use it
- Quick web checks
- Estimating pass or fail accessibility result
- Comparing options before using a detailed worksheet or official source
- Getting a clear answer from two colors