Colour Contrast Checker
Accessibility
Check the contrast between different colour combinations against WCAG standards
Users
40K
Rating
3.5
Reviews
38
7D Growth
0|0%
Stable signalNo paid features detectedHigh-risk permissions
WCAG Color contrast checker
To check the color contrast between foreground and background of the texts
Users90KCurrent public install base
Rating3.9Store average score
Reviews35Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
1 assetsWCAG Color contrast checker Media preview
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Start
3.86
Latest
3.86
7-day rating change
0.00
2026年7月13日2026年7月19日
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-10K-10%Technical snapshot
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Version3.8.5
ManifestV3
Size158KiB
Languages1English
Published
Store updated
Last crawled
English
Overview
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It checks the color contrast between the foreground and background of the elements that are in the page according to the WCAG 2.2.
It evaluates the contrast on all elements of the page considering their computed style for the color and background-color CSS properties. In case of these colors are defined with RGBA values, it also considers the opacity to deduce the real color that finally is show.
It can simulate color blindness and evaluate the contrast for the simulations. By this way, developers can see how the pages look for colorblind users.
The tool also includes two fields in which the colors can be introduced manually to be tested. It also allows to pick the color directly from the documents.
Finally, it auto-refreshes when DOM of the page changes (addition or removing elements), but if the page has many changes, this behavior can be de-activated.
Privacy statement on: https://rumoroso.bitbucket.io/
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Store average score3.9Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.6Average computed only from synced review bodies below
Reviews with text27Synced review bodies
Total ratings / reviews35Chrome Web Store public rating/review count
Store average score: 3.9. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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Love it! Would be great if you could add support for APCA and Oklch colors as well.
Stopped to work with local PDFs in last update. Please, consider to fix with a new update. Best regards.
很棒的開發工具，但是目前遇到css的color-mix會出問題。希望可以修正。🥺🥺🥺
Great extension for easily finding colour contrast accessibility issues - especially with the auto-update feature. Unfortunately the extension overlays on the page and doesn't appear to update the viewport, so there are parts of the page that are hidden from view that are being analysed that I can't see - it would be good if the extension either updated the viewport so that all items on the page are always visible (similar to how DevTools works) or if when you clicked on an item, it would show the offending element in the DOM or part of the text of the element so it's easier to see what it is. Could do the same as the axe accessibility tool and be available inside the DevTools window to not have to deal with managing the viewport/position. It would also be handy to be able to hide the results for elements that aren't visible.
some times it's not picking all colors & automatically some coors are getting grouped.
Cool!
It would be nice to be able to select which side of the page the panel appears on (right side as well as the left side) because some, in fact most sites have left side navigation panels.
Simple, efectivo y útil. Debería tener una interfaz un poco más sencilla pero igual funciona bien.
Really useful tool when testing for accessibility, but i wish one could change the position of the panel to the right side. do you think this update could happen soon?
This plugin is very good, thank you very much for your work ! Your plugin help me everytime :)