Color Contrast Checker

Check WCAG color contrast ratio between foreground and background colors quickly in a popup.

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.