Techniques for WCAG 2.0

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F81: Failure of Success Criterion 1.4.1 due to identifying required or error fields using color differences only


All technologies

This failure relates to:


This objective of this technique is to describe the failure that occurs when a required field or an error field is marked with color differences only, without an alternate way to identify the required field or error field. This can cause problems for people who are blind or colorblind, because they may not be able to perceive the color differences that indicate which field is required or which field is causing an error.




For all required fields or error fields in the Web page that are identified using color differences:

  1. Check that an non-color way to identify the required field or error field is provided.

Expected Results