Color Contrast Checker (WCAG 2.1)
Test contrast ratios between foreground text and background colors for WCAG AA/AAA compliance.
10.42 : 1
Very High ContrastLarge Headline Preview (18pt+)
Normal body paragraph readability test. Accessible color combinations ensure users with low vision or screen glare can effortlessly absorb content.
About this Tool & How to Use It
The Color Contrast Checker (WCAG 2.1) is engineered to provide fast, reliable results without requiring software installations, sign-ups, or invasive analytics. All computations and transformations happen locally inside your browser whenever possible, keeping your sensitive data private.
Key Features
- Zero Installation: Runs instantly inside any modern desktop, tablet, or mobile web browser.
- Privacy by Default: Your inputs never touch remote servers unless network DNS or server sockets are explicitly queried.
- One-Click Workflow: Copy results directly to your clipboard or download formatted outputs with a single click.
Frequently Asked Questions
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