Klarity Accessibility Tool

by Klarity Accessibility Tool · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Finds the optimal overlay values for sufficient WCAG contrast ratio between text and images.

Users

−1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#226K

#189K among extensions

Version

1.0.0

updated 16 May 2021

Users

monthly, 3 years

Latest, 16 Oct 2026: 7 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years

Latest, 16 Oct 2026: 0 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 Klarity Accessibility Tool

This extension easily allows developers to ensure readability for text over images, you select the text colour and image and the optimal value will be calculated for you. The value can be applied to the stylesheet of your choice as an opacity overlay. You can adjust the contrast ratio AA (4.5:1) or AAA (7:1), and overlay colour in the popup. Currently supports: Image types - Picture, Img tags, and background-image. Overlay - Opacity. Klarity does not collect or send user's data anywhere. More features coming soon...