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.
Colour Contrast Analyser (CCA) 3.5.5
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.
- By Cédric Trévisan
- Open Source
- Updated Sep 10, 2025
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
Technical details
| Publisher | Cédric Trévisan |
|---|---|
| Author | The Paciello Group |
| Version | 3.5.5 |
| Release date | 2025-09-10 |
| License | GPL-3.0-or-later |
| Installer type | nullsoft, wix, portable |
| Architecture | x64 |
| Package ID | TPGi.CCAe |
Install Colour Contrast Analyser (CCA) from the command line
- Install with Windows Package Manager
winget install --id=TPGi.CCAe -e- Update to the latest version
winget upgrade --id=TPGi.CCAe -e- Uninstall
winget uninstall --id=TPGi.CCAe -e- Silent install with the offline installer
"CCA-Setup-x64-3.5.5.exe" /S
Colour Contrast Analyser (CCA) version history
- 3.5.4
- 3.5.3
- 3.5.2
- 3.5.1
- 3.4.2
- 3.4.1
- 3.4.0
Frequently asked questions
Is Colour Contrast Analyser (CCA) free?
Yes. Colour Contrast Analyser (CCA) is free and open-source software released under the GPL-3.0-or-later license.
What is the latest version of Colour Contrast Analyser (CCA)?
The latest version is 3.5.5, released on Sep 10, 2025.
Is it safe to download Colour Contrast Analyser (CCA)?
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 368e9e570d34b57854ca0c77e31013aefb48698b2dd63fdfbc46d343e6873563.
Which Windows versions does Colour Contrast Analyser (CCA) support?
Colour Contrast Analyser (CCA) runs on Windows and is available for 64-bit (x64) systems.
How do I install Colour Contrast Analyser (CCA) silently?
Run the offline installer with "CCA-Setup-x64-3.5.5.exe" /S, or install it with Windows Package Manager: winget install --id=TPGi.CCAe -e --silent.
How do I uninstall Colour Contrast Analyser (CCA)?
Open Settings › Apps › Installed apps, find Colour Contrast Analyser (CCA) and select Uninstall. From the command line, run winget uninstall --id=TPGi.CCAe -e.
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