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What is Use of Color?

Color must not be the only way to convey information or state.

Color must not be the only way to convey information or state.

Keyboard and screen reader users.
People who need predictable interactions.
Users who benefit from visible focus and clear labels.

Good vs Bad Examples

Use the tabs to compare the accessible pattern with the example to avoid.

Good Example

Form error shown with red border and text label “Email is required.”

html

<div />

Why this is correct (developer logic):

Provides an accessible and predictable interaction.
Works better for keyboard and assistive technology users.
Matches the intended WCAG requirement for this page.

Implementation Checklist

Progress0 / 5 completed (0%)

Keep the interaction predictable and easy to understand.
Test with keyboard and screen reader navigation.
Make sure focus is visible and easy to track.
Avoid hidden, unexpected, or unnecessary repetition.
Confirm the example meets the intended accessibility requirement.

Knowledge Check

Answer Yes or No to test your understanding of use of color.

Score: 0 / 3 · Answered: 0 / 3

Does the good example demonstrate use of color correctly?

Is the bad example acceptable for use of color?

Should this pattern be checked with keyboard and screen reader testing?