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About Accessible Colors
Accessible Colors is a browser tool for checking whether a text color and a background color have enough contrast under the Web Content Accessibility Guidelines (WCAG 2.0), at both the AA and AAA levels.
When a pair fails, it does more than report the ratio. It automatically works out the closest accessible colors, so a designer or developer can keep a palette close to the original while still meeting the guideline.
Strengths
- Checks against both WCAG AA and AAA levels
- Suggests the nearest passing colors instead of only failing a pair
- Nothing to install
Limitations
- Based on WCAG 2.0 contrast rules
- Limited to text and background color pairs
Details
- Pricing
- FreeUsed directly in the browser; the site mentions no pricing.
- License
- Proprietary
- Platforms
- Web
- How it runs
- Web application
- Best suited for
- Designers adjusting brand colors to pass WCAG contrast checks
- Categories
- Color tools, Website testing
- Last verified
- Added
- Provenance
- Facts checked against the developer's own pages and store listings, 1 sources on file.
Alternatives to Accessible Colors
Compare allSoftware that can replace Accessible Colors for an important use case, and what changes if you switch.
Accessible Color Generator
A web tool that finds the closest accessible variation of a brand color for a chosen background.
Accessible Color Generator also suggests the nearest accessible variation for AA or AAA, with separate large and small text results, though the page promotes courses.
Contrast Finder
A web tool that checks color contrast against WCAG and suggests close valid color pairs.
Contrast Finder suggests close valid color pairs as well, is open source under AGPL-3.0, can be self-hosted and accepts CSS color keywords.
WebAIM Contrast Checker
An online checker that tests foreground and background color contrast against WCAG AA and AAA levels.
WebAIM Contrast Checker adds results for UI components and shareable permalinks, but relies on manual lightness adjustments rather than suggesting passing colors.
Colour Contrast Analyser
A free desktop app for checking foreground and background color contrast against WCAG, with eyedropper pickers.
Colour Contrast Analyser moves the check to an open-source Windows and macOS desktop app with a screen 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 clear AA and AAA results with RGB or HSL sliders and Google font previews, without automatic color suggestions.
Colorable
A web tool for testing the contrast of a text and background color pair against WCAG levels.
Colorable offers HSL sliders plus reverse and random buttons for experimenting with pairs, showing ratio and WCAG level instead of suggesting fixes.
Contrast Ratio
A web tool that calculates the WCAG contrast ratio between a text color and a background color.
Contrast Ratio calculates the ratio live as you type and supports semi-transparent colors, with no suggestion of passing colors.
Accessible Colors as an alternative
Listings that name Accessible Colors as an alternative.
RandomA11y
A web tool that generates random color pairs meeting WCAG contrast requirements.
Accessible Colors starts from your own text and background pair and suggests the nearest colors that pass WCAG AA or AAA, rather than producing random passing pairs.
Similar software
Related functionality, not necessarily a direct replacement.
WhoCanUse
A web tool showing how a text and background color pair looks to people with various vision conditions.
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.
Accessible Palette
A web tool for building color systems with consistent lightness and WCAG contrast across hues.
