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Color Contrast Checker

Chrome extension by NETPROFIT · Productivity · Developer

  • Established publisher

A Chrome extension in Productivity · Developer with 48 users, barely installed. Audience over the last 30 days: -3.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 2 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
48
Rating
5.0 (1 ratings)
Users, last 30 days
-3
Rating, last 30 days
Steady over 30 days
Version
1.0
Updated in the store
2025-06-10
Published
2025-05-23
Manifest
V3
Browser access
No permissions declared

How it has moved

Users
-3 since 06.10
38-51 · 17 readings
  1. 2026-10-0838
  2. 2026-10-1039
  3. 2026-10-1140
  4. 2026-10-1350
  5. 2026-10-1650
  6. 2026-10-1845
  7. 2026-10-1943
  8. 2026-10-2144
  9. 2026-10-2243
  10. 2026-10-2342
  11. 2026-10-2441
  12. 2026-10-2544
  13. 2026-10-2846
  14. 2026-10-2947
  15. 2026-11-0145
  16. 2026-11-0348
  17. 2026-11-0548
Rating
unchanged since 06.10
reviewsrating 5.00 · 17 readings
  1. 2026-10-08reviews1rating5.00
  2. 2026-10-10reviews1rating5.00
  3. 2026-10-11reviews1rating5.00
  4. 2026-10-13reviews1rating5.00
  5. 2026-10-16reviews1rating5.00
  6. 2026-10-18reviews1rating5.00
  7. 2026-10-19reviews1rating5.00
  8. 2026-10-21reviews1rating5.00
  9. 2026-10-22reviews1rating5.00
  10. 2026-10-23reviews1rating5.00
  11. 2026-10-24reviews1rating5.00
  12. 2026-10-25reviews1rating5.00
  13. 2026-10-28reviews1rating5.00
  14. 2026-10-29reviews1rating5.00
  15. 2026-11-01reviews1rating5.00
  16. 2026-11-03reviews1rating5.00
  17. 2026-11-05reviews1rating5.00
Users
+13 since 31.08
34-51 · 31 readings
  1. 2026-08-3135
  2. 2026-09-0336
  3. 2026-09-0434
  4. 2026-09-0634
  5. 2026-09-0835
  6. 2026-09-1336
  7. 2026-09-1538
  8. 2026-09-1640
  9. 2026-09-2041
  10. 2026-09-2138
  11. 2026-09-2540
  12. 2026-09-2739
  13. 2026-09-2842
  14. 2026-10-0451
  15. 2026-10-0838
  16. 2026-10-1039
  17. 2026-10-1140
  18. 2026-10-1350
  19. 2026-10-1650
  20. 2026-10-1845
  21. 2026-10-1943
  22. 2026-10-2144
  23. 2026-10-2243
  24. 2026-10-2342
  25. 2026-10-2441
  26. 2026-10-2544
  27. 2026-10-2846
  28. 2026-10-2947
  29. 2026-11-0145
  30. 2026-11-0348
  31. 2026-11-0548
Rating
unchanged since 31.08
reviewsrating 5.00 · 31 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-03reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-06reviews1rating5.00
  5. 2026-09-08reviews1rating5.00
  6. 2026-09-13reviews1rating5.00
  7. 2026-09-15reviews1rating5.00
  8. 2026-09-16reviews1rating5.00
  9. 2026-09-20reviews1rating5.00
  10. 2026-09-21reviews1rating5.00
  11. 2026-09-25reviews1rating5.00
  12. 2026-09-27reviews1rating5.00
  13. 2026-09-28reviews1rating5.00
  14. 2026-10-04reviews1rating5.00
  15. 2026-10-08reviews1rating5.00
  16. 2026-10-10reviews1rating5.00
  17. 2026-10-11reviews1rating5.00
  18. 2026-10-13reviews1rating5.00
  19. 2026-10-16reviews1rating5.00
  20. 2026-10-18reviews1rating5.00
  21. 2026-10-19reviews1rating5.00
  22. 2026-10-21reviews1rating5.00
  23. 2026-10-22reviews1rating5.00
  24. 2026-10-23reviews1rating5.00
  25. 2026-10-24reviews1rating5.00
  26. 2026-10-25reviews1rating5.00
  27. 2026-10-28reviews1rating5.00
  28. 2026-10-29reviews1rating5.00
  29. 2026-11-01reviews1rating5.00
  30. 2026-11-03reviews1rating5.00
  31. 2026-11-05reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

We have not read this listing's manifest since we started keeping permission names. The counts above come from the last time we did.

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

NETPROFIT publishes 2 listings we track, 55 users between them. Listed website: netprofit.de.

  1. Blockiere Analytics ohne Einwilligung NETPROFIT · Productivity · Developer · published 2026-03-04 7 users

Like this one

Listings the catalog judges closest in what they say they do.

  1. Simple Contrast Analyzer Describes nearly the same job, smaller audience 52 users ★ 5.0
  2. Color Contrast Checker Describes nearly the same job, smaller audience 7 users
  3. Color Contrast Checker - WCAG Accessibility Ratio Tool Describes nearly the same job, smaller audience 85 users ★ 5.0
  4. WCAG Color Contrast Checker Describes nearly the same job, smaller audience 96 users
  5. Contrast Checker NEO Describes nearly the same job, smaller audience 3 users (last published figure)

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Users and rating on Ext Ops Panel

Markdown

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HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-03. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built