1.3.8-1 Use of Color

Where color is used for coding, it should be employed conservatively and consistently.

Additional Information:
The number of colors used for coding should be kept to the minimum needed for providing sufficient information. Once colors are assigned a specific use or meaning, no other color should be used for the same purpose. Casual, arbitrary use of colors on every display may cause displays to appear 'busy' or cluttered. Casual use of color will also reduce the likelihood that significant color coding on particular displays will be interpreted appropriately and quickly by a user.