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Available on winget

Install Colour Contrast Analyser (CCA)

The Colour Contrast Analyser (CCA) helps you determine the legibility of text and the contrast of visual elements, such as graphical controls and visual indicators.

Install with winget
winget install --id TPGi.CCAe
Upgrade
winget upgrade --id TPGi.CCAe
Uninstall
winget uninstall --id TPGi.CCAe

About Colour Contrast Analyser (CCA)

The Colour Contrast Analyser (CCA) helps you determine the legibility of text and the contrast of visual elements, such as graphical controls and visual indicators.

What's new in 3.5.5

- Updated to Electron 35.7.5, to fix CVE-2025-55305 - Button Icons (and other UI elements) are not visible in some High Contrast Theme #355 - An unannounced keyboard shortcut in CCA hijacks the macOS default for selecting text. #323 - ARM64 Installer #368 - Installation Guide #365 - Unable to Submit Contact Form #364 - Update pl.json #370 - Update a Korean translation strings #357 - Add support for High Contrast Theme #356

Read release notes

Version history

Version Updated Notes
3.5.5 Unknown - Updated to Electron 35.7.5, to fix CVE-2025-55305 - Button Icons (and other UI elements) are not visible in some High Contrast Theme #355 - An unannounced keyboard shortcut in CCA hijacks the macOS default for selectin...
3.5.4 Unknown - Auto Update Error -> 3.5.3 unsigned #339 - [Windows] Auto Update Error dialog (from 3.5.1 to 3.5.2) #338 - Provider Certificate out of date with Version 3.5.1 #334 - Mac Keyboard Shortcut Overrides Standard Text Editin...
3.5.3 Unknown Release notes
3.5.2 Unknown Release notes
3.5.1 Unknown No notes
3.4.2 Unknown Release notes
3.4.1 Unknown Release notes
3.4.0 Unknown Release notes