:valid

The :valid CSS pseudo-class represents any <input> or other <form> element whose contents validate successfully. This allows to easily make valid fields adopt an appearance that helps the user confirm that their data is formatted properly.

/* Selects any valid <input> */
input:valid {
  background-color: powderblue;
}

This pseudo-class is useful for highlighting correct fields for the user.

Syntax

:valid

Examples

See :invalid for an example.

Accessibility concerns

The color green is commonly used to indicate valid input. People who have certain types of color blindness will be unable to determine the input's state unless it is accompanied by an additional indicator that does not rely on color to convey meaning. Typically, descriptive text and/or an icon are used.

• MDN Understanding WCAG, Guideline 1.4 explanations
• Understanding Success Criterion 1.4.1 | W3C Understanding WCAG 2.0

Specifications

Browser compatibilityUpdate compatibility data on GitHub

See also

• Other validation-related pseudo-classes: :required, :optional, :invalid
• Form data validation