Color Contrast Checker
designCheck WCAG compliance for text and background color combinations.
100% Client-Side — Processed privately & locally in your browser.
- 1Select or enter a background color.
- 2Select or enter a foreground (text) color.
- 3Check the contrast ratio and WCAG accessibility standards.
Frequently Asked Questions
Is my data sent to any server?
No. All processing for this tool occurs directly within your web browser using Web APIs and WebAssembly. Your data never leaves your computer.
Can I use this tool offline?
Once loaded, most utilities remain functional even if your connection drops. DevtUtils is designed to be lightweight and resilient.
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