Use color as an enhancement, not as the only way to distinguish keys, controls, or labels.


Rationale

If the hardware conveys information by color alone, users who cannot identify or distinguish colors will not be able to make use of the information.


Required development techniques

The following technique is required to meet Checkpoint 4.1 from the IBM Hardware Accessibility Checklist:


Recommended development techniques

The above techniques are required; the following techniques are recommended to enhance accessibility.


Required test techniques

Test the hardware to ensure that it complies with accessibility requirements.

Tools

No tools are needed to test this checkpoint:

Techniques


One or more of the following techniques are required to verify this checkpoint:
Action Result

1

Verify that color cues are redundant. Visually inspect that color provides redundant information.

Pass:

Fail:

2

Verify that color is not the sole means of indicating actions or distinguishing an element. Visually inspect that color provides redundant information.

Pass:

Fail:

©2009 IBM Corporation

Last updated on July 22, 2009.