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Why is relying only on red-green difference risky in colour accessibility?

Answer and explanation

Correct answer: Some viewers may have difficulty distinguishing red from green

The governing concept is inclusive colour design. Some people have red-green colour-vision deficiency, so a red-green difference may not communicate information reliably. Option A is correct because labels, patterns, symbols, or light-dark contrast should reinforce the colour message. Option B assumes identical vision for everyone; C describes no normal effect of pairing these colours; and D wrongly excludes digital and other visual media.

Related tags

Colour AccessibilityRed-Green VisionInclusive DesignColourElements Of ArtArt EducationClass 9 Mcq

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