Check WCAG color contrast ratio between foreground and background colors quickly in a popup.
Users
2
0 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#359K
#273K among extensions
Version
1.0.0
updated 18 Dec 2025
Users
monthly, 10 months
Latest, 15 Oct 2026:2 usersMove the mouse over the chart for any month
Ratings count
monthly, 10 months
Latest, 15 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Color Contrast Checker
Color Contrast Checker is a simple and fast tool that helps you test the contrast ratio between two colors and verify whether they meet WCAG accessibility standards. This extension allows you to quickly check if your text and background colors are readable and accessible for all users, including those with visual impairments.
Features:
Choose foreground and background colors using built-in color pickers
View real-time contrast ratio based on WCAG formulas
Check compliance for Normal Text and Large Text
See AA and AAA pass/fail results
Copy contrast results with one click
Clean, lightweight, and easy-to-use interface
Works entirely offline — no data collected
Why Use a Contrast Checker?
Good color contrast ensures your text is readable and meets accessibility guidelines. Whether you are a designer, developer, or content creator, this tool helps you make colors accessible for everyone.
How It Works:
Pick a foreground color
Pick a background color
The extension instantly calculates the contrast ratio
View WCAG compliance for AA and AAA standards
Copy results if needed
This extension is designed to be simple, accurate, and focused on a single purpose — checking color contrast for better accessibility.