aeeble

The Colour Contrast Analyser (CCA) is a free tool by TPGi that helps developers and designers check the accessibility of their digital products by analyzing the contrast ratio between foreground and background colors. It is available for Windows and macOS.

Key Features

• Foreground and background color picker with eye dropper tool
• WCAG 2.0, 2.1, and 2.2 compliance checking
• Adjustable color sliders with RGB, HSV, and HSL formats
• Alpha transparency support for foreground colors
• Color blindness simulator with eight different vision deficiency settings
• Sample preview display for text and non-text contrast
• Personalized preferences and shortcut commands

Usage

1. Download and install the CCA tool from the TPGi website.
2. Select the foreground and background colors using the eye dropper tool or by entering the color values manually.
3. Adjust the color values to achieve a contrast ratio that meets the desired WCAG success criteria.
4. Use the color blindness simulator to test the color contrast under different vision deficiency settings.

Benefits

The Colour Contrast Analyser helps ensure that digital products are accessible to users with color vision deficiency or low vision impairments, promoting inclusive user experiences.