Determine if foreground and background colors provide enough contrast.
The Colour Blindness Simulator shows how images may appear to users with different color blindness conditions.
An organization founded to raise awareness of color blindness. The website provides examples of what someone who is color blind would experience.
Simulates how the world looks to people with various color deficiencies.
Color Oracle is a free color blindness simulator for Windows, Mac, and Linux.
See how you would do in a color blind world. Presents real-life and education-related examples.
The accessibility color wheel is a tool to help choose accessible color combinations.
The National Center on Universal Design for Learning presents Universal Design for Learning Guidelines.
San Francisco State University provides online training resources for Universal Design for Learning.
The National Center on Disability and Access to Education (NCDAE) provides a tutorial on how to caption YouTube videos.