LESSON: 7 Things You Can Do Right Now to Make Your Moodle Course More Accessible
This adaptive Lesson will provide you with background on accessibility, and seven concrete actions you can take now. There will be opportunities to test your knowledge as well.
2. Color & Contrast
Provide sufficient contrast between foreground and background
Foreground text needs to have sufficient contrast with background colors. This includes text on images, background gradients, buttons, and other elements. This does not apply for logos, or incidental text, such as text that happens to be in a photograph. The links below provide more information on the minimum contrast ratio as required by the WCAG and how to check contrast. “Contrast ratio” is a short version of the more technically correct term “luminance contrast ratio”.
Don’t use color alone to convey information
While color can be useful to convey information, color should not be the only way information is conveyed. When using color to differentiate elements, also provide additional identification that does not rely on color perception. For example, use an asterisk in addition to color to indicate required form fields, and use labels to distinguish areas on graphs.
Green, Blue, Red, Yellow, or Don't Know?

Example: Referring to something using color and number
Which is the right-angled triangle?
Green (1), Blue (2), Red (3), Yellow (4), or Don't know?
More Information:
More Information:
Citation and Link: White, K., Abou-Zahra, S., & Henry, S. L. (2019, January 9). Designing for Web Accessibility. Web Accessibility Initiative. https://www.w3.org/WAI/tips/designing/