Accessibility
Color contrast and accessibility
Learn why visual contrast affects readability and how stronger foreground-background separation improves interfaces.
In one sentence
Contrast helps users distinguish information from its background.
Why it matters
Low contrast can make essential text difficult or impossible to perceive, especially for users with low vision.
Applied example
Secondary text can be visually quieter without becoming so light that it stops being comfortably readable.
What to remember
- Do not rely on subtle gray text for essential information.
- Check real contrast ratios.
- Test interfaces in different viewing conditions.
Free tool
Check your colors with a real contrast ratio.
Test foreground and background colors, review AA/AAA, then come back to the principle to understand why.
Open contrast checker →PixelDojo
Don't just memorize the principle. Practice spotting it.
Test your judgment with fast visual challenges and immediate feedback.
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