W3C Standards Website

Dont Rely on Colours Alone

So why not just rely on colours

It’s important not to rely on colour alone because some users may have colour‑vision difficulties, and factors like lighting or screen quality can affect how colours appear. Using extra visual cues—such as patterns, shapes, or text labels—helps ensure everyone can understand the information.


Some other points include


Examples of Not Relying on Colour vs. Relying on Colour

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Correct:

Success
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Incorrect:

(No text or icons — relies only on colour)


Click the cards below to learn more about each point!

Use Clear Text

Use Headings Properly

Ensure Sufficient Colour Contrast

Don't Rely on Colours Alone

Provide Alt Text for Images

Make Links Descriptive

Ensure Keyboard Navigation Works

Use Forms Carefully

Provide Captions for Videos

Avoid Auto-Playing Audio or Video