Ensure that all users can identify the area of the page a component is taking up.
Why this matters
At low values of contrast, people with Low Vision or other vision disabilities may have trouble making out the edges of components, which can make activating them challenging.
How to implement
Review Using color.
Ensure you’re using the colors and designs outlined by your designer.
How to test
Verify that borders, background colors, and similar delineations are a minimum of 3:1 ratio.