The visual presentation of text and images of text has a contrast ratio of at least 4.5:1, except for the following:
The purpose of this success criterion is to ensure that users with moderately low vision (approximately 20/40) can discern the text from its background.
How to Meet
Authors must ensure that the contrast ratio between text (including images of text) and backgrounds is at least 4.5:1.
The following knowledge base pages provide more information about how to address this success criterion for publishing content: