---
title: "WCAG Color contrast checker – Chrome extension stats, history and permissions"
description: "100,000 users, rated 3.86 by 35 people. Version 3.8.5, updated 2025-12-27. Requests 4 permissions."
url: "https://extensiontracker.com/extension/plnahcmalebffmaghcpcmpaciebdhgdf"
---

# WCAG Color contrast checker

Live in the Chrome Web Store.

- Users: 100,000
- Rating: 3.86 from 35 ratings
- Last checked: 2026-11-11 00:23 UTC
- Users gained in 7 days: No change
- Users gained in 30 days: No change (+0.0%)
- Rank by users: #1,054 of 292,131 live extensions
- Rank in Developer Tools: #102 of 30,442

## The listing

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

Summary from the listing:

> To check the color contrast between foreground and background of the texts

- Extension ID: `plnahcmalebffmaghcpcmpaciebdhgdf`
- Developer: [Jorge Rumoroso](https://extensiontracker.com/developer/u639a9ca922090231a4a076c4b0f7411b)
- Enhanced Safe Browsing: Trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing))
- Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer)
- First published: 2018-03-06
- Last updated: 2025-12-27
- Version: `3.8.5`
- Size: 158 KiB
- Minimum Chrome: 88
- Languages (1): English
- Chrome Web Store: <https://chromewebstore.google.com/detail/wcag-color-contrast-check/plnahcmalebffmaghcpcmpaciebdhgdf>
- View its code or download CRX: <https://crxpeek.com/extension/plnahcmalebffmaghcpcmpaciebdhgdf>
- Search Google for the ID: <https://www.google.com/search?q=%22plnahcmalebffmaghcpcmpaciebdhgdf%22&tbs=li:1>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-11-11 | 100,000 | 3.86 | 35 |
| 2026-11-04 | 100,000 | 3.86 | 35 |
| 2026-10-28 | 100,000 | 3.86 | 35 |
| 2026-10-20 | 100,000 | 3.86 | 35 |
| 2026-10-13 | 100,000 | 3.86 | 35 |
| 2026-10-07 | 100,000 | 3.86 | 35 |
| 2026-09-29 | 100,000 | 3.86 | 35 |
| 2026-09-27 | 100,000 | 3.86 | 35 |

## What changed

Every change found on a check, newest first.

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

## Developer history

Moves to another publisher account and new contact emails, newest first.

No move to another account and no new contact email since tracking began on 2026-09-27.

We know contact emails only by a keyed hash, so they're never shown. Recent changes: [Account and contact changes](https://extensiontracker.com/owners/).

## What it can access

From the extension's manifest, in plain language.

**Every website:** it can read and change your data on all the sites you visit.

### Sites

- `<all_urls>`: Every website

### Sites where it runs scripts

- `<all_urls>`: Every website

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `storage`: Save settings and data in your browser
- `webNavigation`: Follow your browsing, page by page

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [HeadingsMap](https://extensiontracker.com/extension/flbjommegcjonpdmenkdiocclhjacmbi) | 100,000 | 4.51 | 83 | Developer Tools |

All 2 extensions by [Jorge Rumoroso](https://extensiontracker.com/developer/u639a9ca922090231a4a076c4b0f7411b).

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 2026-11-11 00:23 UTC; next check around 2026-11-17.

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

## Cite this page

Extension Tracker. “WCAG Color contrast checker” (plnahcmalebffmaghcpcmpaciebdhgdf). Chrome Web Store data, last checked 2026-11-11. https://extensiontracker.com/extension/plnahcmalebffmaghcpcmpaciebdhgdf. Accessed 2026-11-13.

```bibtex
@misc{extensiontracker_plnahcmalebffmaghcpcmpaciebdhgdf,
  title   = {WCAG Color contrast checker (plnahcmalebffmaghcpcmpaciebdhgdf)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-11},
  url     = {https://extensiontracker.com/extension/plnahcmalebffmaghcpcmpaciebdhgdf},
  urldate = {2026-11-13}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/plnahcmalebffmaghcpcmpaciebdhgdf>. 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. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.