For full ADA and Web Accessibility compliance with WCAG 2.0, color contrast in courses must have at least a ratio of 5:1 for level 2 compliance and a ratio of 10:1 for level 3 compliance. I think it should be noted that in our effort to support the highest standard of quality in our courses, we should always strive to use colors that meet level 3 compliance.
With that in mind, I decided to set out to see exactly WHICH of the offered colors in Blackboard were actually compliant and what level of compliance they met.
Here is a summary of the results:
- Total number of colors offered in the blackboard palette: 216
- Number of colors that meet level 3 compliance: 24
- Number of colors that only meet level 2 compliance: 43
- Number of colors that are non-compliant: 149
As you can see, only 11% of the colors are level 3 compliant and about 20% more are level 2 compliant only. But, the majority of colors offered by blackboard (69%) are not compliant. And not many professors know this!
At the request of a professor I've been working with, I've created a resource that can be shared with them. It is just a simple HTML page that can be e-mailed. Its not hosted through any server at the moment. Feel free to take this file and adjust it, change it as needed, and use it as you would like.
File: ADA Color Contrast Page for Blackboard 9.0+