Color Contrast
Color Contrast refers to how bright or dark colors appear against each other on screens, particularly about the relative gray-scale luminosity perceived by the human eye.
The contrast between the text and the text background concerns colorblindness and other visually impaired users.
If you are interested in color contrast analyzer tools that you can download to your computer, visit the article: Colour Contrast Analyser (CCA)
Testing Color Accessibility: Tools & Simulators
Implementing accessibility best practices will improve accessibility for all audiences. Here is how you can manually test your color selections by uploading the content to a web-based Color Blind Vision simulator and using Color Contrast Analyzers:
- Coblis is a free Color Blindness Simulator that looks at the content through the eyes of people with different types of color blindness.
- WhoCanUse is a web tool to bring attention to and understand how color contrast can affect people with visual impairments.
- Color Oracle is a free color blindness simulator for Windows, Mac, and Linux.
- Color Contrast Checker - TPGi is a downloadable color analyzer.
- Vischeck is a way of showing you what things look like to someone who might be colorblind. You can try Vischeck online - either run Vischeck on your own image files or run Vischeck on a web page. You can also download programs to run it on your computer.