Which signs have yellow as the predominant color?

The predominant color of caution signs is yellow. This color is chosen specifically to alert individuals to potential hazards and to promote a sense of awareness regarding possible dangers. Caution signs often indicate situations that may require increased attention or a reduction in speed and are used to communicate general safety guidance in various environments, such as in construction zones or on roadways.

Yellow serves as a signal for caution because it is a bright, attention-grabbing color that stands out against most backgrounds, making it effective for conveying a message of alertness without indicating immediate danger. This is in contrast to other colors associated with different levels of severity in safety signage, where red might imply danger or prohibitions, and other colors might represent specific risks or conditions. The selection of yellow for caution signs leverages psychological associations with the color, as it is often associated with brightness and visibility, reinforcing the need for careful attention.