A subtle color pairing can feel elegant on a large display in a quiet room. The same text may be harder to read on a smaller screen, in changing light, or for a reader with different visual needs.

Check contrast with the actual foreground and background colors used by the interface. Include muted text, links, and states that appear after interaction. Do not assume that a theme remains readable because its main heading has strong contrast.

Use contrast alongside clear labels and other visual cues. Color alone should not carry an important distinction. A readable design gives ordinary content the same care as the most prominent part of the page.

Picture this situation.

A thin outline may disappear on a modest display. A control’s recognizable boundary deserves attention beyond a high-quality design preview.

A second way to look.

Consistency is valuable where it carries learned meaning. Keep familiar behavior dependable while allowing different tasks to have the structure they need.
A few starting points
  1. Check body and supporting text.
  2. Review interactive states too.
  3. Use more than color for important distinctions.

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Keep learning

Related background to continue exploring this subject.

W3C: web accessibility W3C: accessible image tutorials
Look a little closer