1.3.8-2 Color Coding for Discrete Data Categories

When a user must distinguish rapidly among several discrete categories of data, a unique color should be used to display the data in each category.

Additional Information:
Color coding of discrete categories (e.g., setpoint values and actual values) is particularly useful when data items are dispersed on a display. With some display equipment now providing a wide range of different colors, designers may be tempted to exploit that capability by using many different colors for coding. However, such a capability is not useful for coding discrete categories, except that it may allow a designer to select more carefully the particular colors to be used as codes.