---
title: "Area Contrast Checker - Drag to Scan WCAG & APCA Color Accessibility – Chrome extension stats, history and permissions"
description: "136 users, rated 4.67 by 3 people. Version 1.5.0, updated 2026-08-27. Requests 3 permissions."
url: "https://extensiontracker.com/extension/kjemflinmhiljcdnngbacdddbhappdkg"
---

# Area Contrast Checker - Drag to Scan WCAG & APCA Color Accessibility

Live in the Chrome Web Store.

- Users: 136
- Rating: 4.67 from 3 ratings
- Last checked: 2026-09-27 04:23 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #58,462 of 264,703 live extensions
- Rank in Developer Tools: #5,195 of 27,615

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Drag-to-scan A11y contrast tool. Pixel analysis works reliably on images and gradients. Supports WCAG 2.1/2.2 and APCA.

- Extension ID: `kjemflinmhiljcdnngbacdddbhappdkg`
- Developer: [Liberogic Inc.](https://extensiontracker.com/developer/ub756834b5c2ec5bab543c840e935d061)
- Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer)
- First published: 2026-04-22
- Last updated: 2026-08-27
- Version: `1.5.0`
- Size: 45.87 KiB
- Minimum Chrome: 88
- Languages (2): English, 日本語
- Website: `https://www.liberogic.jp/`
- Chrome Web Store: <https://chromewebstore.google.com/detail/area-contrast-checker-dra/kjemflinmhiljcdnngbacdddbhappdkg>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fkjemflinmhiljcdnngbacdddbhappdkg>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 136 | 4.67 | 3 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## What it can access

From the extension's manifest, in plain language.

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `scripting`: Run scripts on sites it can reach
- `storage`: Save settings and data in your browser

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [A11y Navigation Auditor - WCAG Web Accessibility Structure Audit & AI](https://extensiontracker.com/extension/epckdhhgemccfcomonlgkgabihoaaonp) | 80 | – | – | Developer Tools |
| [やさしい日本語 ＆ 読みやすさ診断 〜情報のバリアをなくすアクセシビリティ支援〜](https://extensiontracker.com/extension/kdhnoobomgjbhhokjnaoeolpahbeflaa) | 39 | – | – | Tools |

All 3 extensions by [Liberogic Inc.](https://extensiontracker.com/developer/ub756834b5c2ec5bab543c840e935d061).

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-09-27 04:23 UTC; next check around 2026-10-08.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “Area Contrast Checker - Drag to Scan WCAG & APCA Color Accessibility” (kjemflinmhiljcdnngbacdddbhappdkg). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/kjemflinmhiljcdnngbacdddbhappdkg. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_kjemflinmhiljcdnngbacdddbhappdkg,
  title   = {Area Contrast Checker - Drag to Scan WCAG & APCA Color Accessibility (kjemflinmhiljcdnngbacdddbhappdkg)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/kjemflinmhiljcdnngbacdddbhappdkg},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/kjemflinmhiljcdnngbacdddbhappdkg>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.