Web Development
Web Developer Guidelines
Visual Design Recommendations

Checkpoint 6.4 - Mobile-PDA

Colour is not used as the only means to convey information

WCAG 1.0 Priority 1

WCAG Guideline 2. Don't rely on color alone.

The display and viewing capabilities of mobile device screens is less that a standard computer monitor and are frequently used in less than optimal situations. Where colour has been used exclusively to convey some information or denote functionality, this capability may be lost to a user who is unable to see the colour on the small screen in less than ideal conditions.

Requirement

Colour is not used as the only means to convey informationv

Recommendation

Such information includes highlighting or bolding of text and colour schemes for statuses or component legends.

Checking Tool

View the page on a mobile device with strong light parallel to the screen to verify that all information can be see and accessed.

Information Source

The original source of this information is located on the W3C web site  (www.w3.org/TR/WCAG10-TECHS/#tech-color-convey)

 

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