Accessibility: WCAG Standards

The Science of Luminance

Color contrast is calculated using the relative luminance of foreground and background colors. This ensures that text remains legible against its backdrop, accounting for the way the human eye perceives brightness across different wavelengths. Our tool uses the official WCAG 2.1 algorithm to provide precise ratios, helping you achieve Level AA and AAA compliance for your design systems.

Inclusive Design Workflows

Checking contrast during the design phase is much more efficient than retrofitting accessibility. Use our checker to validate your brand colors before they enter your CSS variables. If a combination fails, use our Color Converter to adjust the lightness or saturation of your hues until you hit the desired ratio. For modern UI styles, pair this with our Soft UI Designer to ensure that even with blur and transparency, your critical content remains accessible.