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Use TPGi's free color contrast checker to optimize your content - including text and visual elements - for individuals with color-blindness or low vision impairments. Current version 3.5.4. Windows Mac.
Enter a foreground and background color in RGB hexadecimal format or choose a color using the Color Picker. Enter an Alpha value to adjust the transparency of the foreground color. Use the Lightness slider to adjust the perceived lightness of the color.
Contrast Checker. Make sure your color choices are as accessible as possible by checking the contrast ratio of your background and text colors.
Generate palettes with more than 5 colors automatically or with color theory rules; Save unlimited palettes, colors and gradients, and organize them in projects and collections; Explore more than 10 million color schemes perfect for any project; Pro Profile, a new beautiful page to present yourself and showcase your palettes, projects and ...
Contrast-Finder is a tool which computes the contrast between two colors (background, foreground) and checks if the contrast is valid. When the contrast is not valid, the main target is to suggest some correct colors contrasts.
The Polypane color contrast checker checks against values defined by the WCAG 2 (Web Content Accessibility Guidelines) or APCA (the Accessible Perceptual Contrast Algorithm). WCAG give a formula to calculate the contrast, ranging from 1 (no contrast) to 21 (black on white).
Checks the contrast of your color design based on Web Content Accessibility Guidelines (WCAG) 2.0.