Future Media Standards & Guidelines

Colour and meaning

Information conveyed with colour must also be identifiable from context or markup.

Rationale

Users who are blind, have low vision, or have colour blindness may not be able to differentiate content (lines on a chart) or states (selected tabs) if colour alone is used.

Alternatives must be provided for both sighted and non-sighted users, for example a table equivalent of a chart and lines differentiable with different styles (dashed, dotted, etc.).

Techniques

n/a

Tests

Procedure Expected Result Type
Locate every image or element that uses colour to convey meaning. Check visually and with a screen reader For each use of colour to convey meaning there must be alternative visual and non-visual means of accessinging the same information Manual / Tool

Using the standards and guidelines

You can use use and re-use the the BBC Accessibility Standards and Guidelines under an Open Government Licence for Public Sector Information.

Details can be found on the Open Government Licence for Public Sector Information website.

Feedback

We would love to hear your feedback. If you have a question or comment about the standards or guidelines email us at AccessibilityTeam@bbc.co.uk.

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