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Color and Contrast

CISL allows readers to pick a setting for screen colors and contrast that best supports their reading. People may need the ability to change the color contrast due to a visual impairment or other disability, or they may find that a certain setting is simply more comfortable or enjoyable. CISL supports readers in finding out what contrast setting works best for them in different contexts.

Examples of different text and background contrast settings.


Several studies have found that contrast ratio has a significant impact on peoples’ experiences viewing text and images.

Related Guidelines

The features of the CISL tools are related to existing guidelines and best practices, including the Web Content Accessibility Guidelines (WCAG) and the Universal Design for Learning (UDL) Guidelines. The feature of adjustable contrast settings is connected to:

Web Content Accessibility Guidelines (WCAG)

Universal Design for Learning (UDL) Guidelines

Adjustable contrast examples  

Microsoft Immersive Reader allows users to choose a color theme, impacting the contrast levels, for any document within a variety of Microsoft applications.

Check out DeveloperSpace for a compilation of examples and more supporting literature.