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Colour Contrast Analyser (CCA)

The Colour Contrast Analyser (CCA) is a tool by TPGi used to check color contrast for accessibility compliance with WCAG standards. It supports foreground and background color picking, adjustable sliders, multiple color formats, alpha transparency, and easy switching of colors to ensure text and UI elements meet accessibility contrast requirements.
Latest: 3.5.5
Last checked: Jun 9, 2026 12:10am
Rank: 1772/15140
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Overview

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License: GPL-3.0-or-laterWinget: Available

Version & Lifecycle

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Current: 3.5.5 N-2: 3.5.3 Avg cadence: Every 185 days

Top Contributors

Top sitewide contributors:

  1. Anbarasan
  2. nico_k
  3. Bob
  4. Vigneshwaran

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CCAetpgi CCAe