This web-based tool allows designers and developers to easily check the contrast ratio between two colors. It helps ensure that text is legible against its background, adhering to accessibility guidelines like WCAG. You simply input your foreground and background colors using hex codes, RGB, or HSL values, and it provides the contrast ratio, along with a pass/fail indication for different WCAG levels. It's invaluable for creating websites and applications that are usable by everyone, including those with visual impairments. Built by WebAIM, a leading accessibility organization, it's a go-to resource for many in the field.
Editorial check
How this page is checked
Source trail
webaim.org
External links are separated from Surfaced commentary.
Reader safety
Context before clicks
Product links and external services are not presented as guarantees.
Monetization
No affiliate flag
Ads and commerce links are kept distinct from editorial text.
Surfaced take
Why It’s Useful
While many design tools offer basic contrast checks, this standalone checker is incredibly precise and straightforward. Its power lies in its simplicity and unwavering adherence to WCAG standards. Unlike integrated tools that can be buried in complex menus, this one is front-and-center, making it quick to access for a crucial check. It’s particularly useful for anyone working with web design, app development, or even print materials where legibility is paramount. Power users appreciate its ability to instantly verify contrast for various text sizes and weights, ensuring compliance without guesswork. People who rely on it often create universally accessible digital products, making it a vital, though often overlooked, component of a professional workflow.
More from Hidden Gems
View all →ZCode: Claude Code from the Makers of GLM
Read →
Physical disc production ending in Jan 2028 for new games on PlayStation
Read →
For first time, a cell built from scratch grows and divides
Read →
Internal Combustion Engine
Read →
Excalidraw
Read →
TinyWow AI Tools
Read →ZCode: Claude Code from the Makers of GLM
Read →
Physical disc production ending in Jan 2028 for new games on PlayStation
Read →
For first time, a cell built from scratch grows and divides
Read →
Internal Combustion Engine
Read →
Excalidraw
Read →
TinyWow AI Tools
Read →Enjoyed this? Get five picks like this every morning.
Free daily newsletter — zero spam, unsubscribe anytime.
