Color blind

The contrast of icons and graphical objects is just as important as that of text. Use sufficient contrast for all elements on the screen, with a minimum contrast ratio of 3:1.

Avoid referring to a button, menu, or other item in the page only by its position on the page; instead, use additional information that describes the content.

Color is a powerful visual means of presenting or distinguishing information, but when you use color to identify or distinguish information, make sure that this information is still available to people who can't perceive color.

A clear indication that specific form fields are required can save users time and avoid potential errors relating to missing data when a form is submitted.

Users can find their way around a web site more easily and confidently if they know where they are.