1.3.8-4 Color Coding to Draw Attention

Brighter and/or more saturated colors should be used when it is necessary to draw a user's attention to critical data.

Additional Information:
Both intensity and saturation should be used to draw a user's attention to critical data. Although saturated and/or intense hues are useful for drawing a user's attention, their overuse will result in a display that is garish and difficult to view for long periods.