Alternatives to Contrast Finder
A web tool that checks color contrast against WCAG and suggests close valid color pairs. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Contrast Finder
A web tool that checks color contrast against WCAG and suggests close valid color pairs.
Replacements
Listings that take over the same core job as Contrast Finder.
Accessible Colors
A web checker that tests text and background contrast against WCAG and suggests the closest passing colors.
Accessible Colors also suggests the nearest passing colors against AA and AAA, but is a closed web tool based on WCAG 2.0 rules with no self-hosting.
Accessible Color Generator
A web tool that finds the closest accessible variation of a brand color for a chosen background.
Accessible Color Generator suggests the closest accessible variation of a brand color, with separate large and small text results, and is not open source.
WebAIM Contrast Checker
An online checker that tests foreground and background color contrast against WCAG AA and AAA levels.
WebAIM Contrast Checker reports results for text and UI components with shareable permalinks, but you adjust colors manually instead of receiving suggestions.
Colour Contrast Analyser
A free desktop app for checking foreground and background color contrast against WCAG, with eyedropper pickers.
Colour Contrast Analyser is an open-source Windows and macOS desktop app with a screen-wide eyedropper and WCAG 2.0 to 2.2 results.
Colour Contrast Checker
A web tool that checks foreground and background colour pairs against WCAG contrast levels.
Colour Contrast Checker gives AA and AAA pass or fail results with RGB or HSL sliders and Google font previews, without self-hosting.
Contrast Ratio
A web tool that calculates the WCAG contrast ratio between a text color and a background color.
Contrast Ratio updates live as you type and handles semi-transparent colors, but offers no suggested fixes or self-hosting.
Colorable
A web tool for testing the contrast of a text and background color pair against WCAG levels.
Colorable shows contrast ratio and WCAG level with HSL sliders and random buttons, and is not open source.
Also worth comparing
These listings name Contrast Finder as their own alternative, so the relationship runs both ways.
RandomA11y
A web tool that generates random color pairs meeting WCAG contrast requirements.
Contrast Finder is open source under AGPL-3.0 and can be self-hosted, and it suggests valid colors close to a pair you enter instead of random ones.
Similar software
Related functionality, not a direct replacement.
WhoCanUse
A web tool showing how a text and background color pair looks to people with various vision conditions.
Toptal Colorblind Web Page Filter
A web tool that renders a web page through color blindness filters to test its design.
Leonardo
Adobe's web tool for generating accessible color themes and scales from target contrast ratios.
Coblis
A browser-based simulator that shows how an image looks to people with color vision deficiencies.
