Input foreground and background colors to calculate the contrast ratio. The tool checks compliance against WCAG 2.1 Level AA (4.5:1 for normal text, 3:1 for large text) and Level AAA (7:1 for normal text, 4.5:1 for large text) standards.
MEDIA & DESIGN·Client-Side (100% Private)
Color Converter & WCAG Contrast Checker
Convert HEX, RGB, HSL, and OKLCH color codes with live WCAG 2.1 AA/AAA contrast ratio auditing.
Initializing Color Converter & WCAG Contrast Checker...
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Zero Server Storage Guarantee
Data entered into this tool is processed 100% locally within your browser. Nothing is ever sent to or logged on any server.
FREQUENTLY ASKED QUESTIONS
Frequently Asked Questions about Color Converter & WCAG Contrast Checker
Quick answers to common questions about usage, conversion rules, privacy guarantees, and best practices.
How do I check WCAG color contrast compliance?
Which color spaces can I convert between?
Toolsutra supports bi-directional conversion between HEX, RGB, HSL, HSV, CMYK, and modern OKLCH color spaces with instant visual previews.
Why is OKLCH recommended over standard sRGB or HSL in modern CSS?
OKLCH is perceptually uniform, meaning equal numerical steps in lightness match human visual perception across all hues. It avoids HSL clipping issues and unlocks wider P3 display gamuts in modern browsers.
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