Contrast Ratio Checker icon

Contrast Ratio Checker

by Vinícius R. Vieira · Developer Tools
FeaturedManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

A chrome extension based on WCAG 2.0 to easily check contrast ratio.

Users
1,000
0 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#30K
#25K among extensions
Version
1.0
updated 4 Nov 2023

Users

monthly, 3 years
05001,000Nov 2023May 2025Oct 2026
Latest, 15 Oct 2026: 1,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
012Nov 2023May 2025Oct 2026
Latest, 15 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Contrast Ratio Checker

Improve your website accessibility with this tool that follows Web Content Accessibility Guidelines (WCAG) to calculate the contrast ratio between colors, plus offering validators based on WCAG AA (minimum), WCAG AAA (enhanced) and custom ratio.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days0+0.0%00.00
6 months0+0.0%00.00
1 year+62+6.6%00.00

Chrome Web Store search rankings

Where Contrast Ratio Checker appears when people search the store, with the 30 day change
Search phrasePosition30 days
checker#87new

Version history

1 versions recorded
1.03 Nov 2023

Details

Category
Developer Tools
First seen
3 Nov 2023
Size
608 KB
Languages
en-US
Pricing
Free
Extension ID
doonhmibogkgpoonahigdjbpjbpjoebp

Permissions and risk

Minimal riskimpact 0, likelihood 0

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