WCAG Color Contrast Tool icon

WCAG Color Contrast Tool

WCAG 2.2 Color Contrast Calculator & Color Grabber - Check text or image colors on any page

Users71
Rating4.5
Reviews2
Manifest versionV3
7-day growth0
7-day growth rate0%
Preview

WCAG Color Contrast Tool Media preview

2 assets
Trend

30-day user trend

Review user movement over the last 30 days.

User Growth Over Time

66687072742026年5月29日2026年6月1日2026年6月4日Latest: 71
Rating trend

30-day rating change

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30-day rating change

Start
4.50
Latest
4.50
30-day rating change
0.00
4.404.454.504.554.602026年5月29日2026年6月1日2026年6月4日Latest: 4.50
2026年5月29日2026年6月4日
Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthFlat
00%
7-day growthFlat
00%
30-day growthDeclining
-2-2.74%
Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version1.1
ManifestV3
Size2.62MiB
Languages1English (United States)
Published
Store updated
Last crawled
English (United States)
Overview

Product summary

Review the store description, core capabilities, and common use cases.

This calculator will let you calculate WCAG 2.2 color contrast ratio & adjust colors to their needed contrast ratio.

Enter color values or use the color dropper to get existing colors from a web page. The Contrast Checker will automatically calculate the contrast ratio. If the contrast ratio is below 3:1 or 4.5:1, buttons will become available to make the minimum adjustment to the given color value to reach 3:1 or 4.5:1 contrast ratio.

This plugin is made to be fully WCAG 2.2 AA accessible.

If you have any feature requests/ideas, or have any issues, please submit a support request with the "Visit Support Hub" button at the bottom of the page & I'll be happy to help with any updates or fixes.

Reviews

Recent review snapshot

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The Chrome Web Store shows 2 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

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