CMYK Colour Viewer

Name: CMYK Colour Viewer
Author: MB

A CMYK Colour Viewer popup to view what different CMYK Colours look like.

As of May 2026, CMYK Colour Viewer has 59 users in the Productivity category.

MB Productivity

Chrome Web Store ↗.crx

Users+96.7%

Rating0%

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— reviews

Reviews0%

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Version

1.0

Manifest V3

History

2 snapshots

Tracking since Apr 26, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 26, 2026	30	—	—	1.0
May 23, 2026	42	—	—	1.0
Now	59	—	—	1.0

Permissions & access

Permissions: None declared
Host access: None declared

Screenshots

About

A very simple extension that displays two filled squares, one inside another, and allows the user via sliders to change the CMYK value of the fill colour in each square.  

The Larger, or Smaller square is chosen via one of two radio buttons.

By having one square inside another it allows the user to see the contrast between two colours.

Please note that there's a fundamental difference between how colours are displayed on screens and how they're produced in print, which leads to challenges in accurately rendering CMYK colours on a screen.  This will just give an idea of what CMYK colours will look like in print.

The extension is free of fees and adverts.