Why the audit is important
Some users with low vision have a difficult time sensing contrast. They don't see many areas that are very bright or very dark. Everything looks about the same brightness. If text doesn't have a high contrast ratio, these users literally have trouble seeing it at all.
How to pass the audit
To find and fix each of element that does not have a sufficient contrast ratio:
Click the ChromeLens tab.
Click Run Accessibility Checks. ChromeLens outlines each element that fails a test.
Hover over the outlined elements to find the ones with insufficient contrast ratios.
Adjust the foreground or background color of the failing elements so that they have a contrast ratio of at least 4.5 to 1, which is the minimum recommended ratio. See contrast ratio to calculate ratios.
How the audit is implemented
This section explains how this audit is implemented, so that you can understand how the audit's score is calculated.
This audit is powered by the aXe Accessibility Engine. See Text elements must have sufficient color contrast against the background for more information.