What color are regulatory signs generally?

Regulatory signs are designed to inform drivers of specific laws and regulations that must be obeyed for safe and orderly traffic flow. These signs typically use colors that are easily recognizable to ensure attention and compliance. The correct color combination for regulatory signs is predominantly black and white; however, some regulatory signs can also incorporate red and blue as part of their design to indicate particular regulations or restrictions.

For instance, stop signs and yield signs are universally recognized in red and white, indicating imperative traffic rules. Red signifies prohibition or required action, while black and white can convey other important regulations. Colors like green, yellow, and orange are generally used for guide signs and warning signs, respectively, which convey different information than regulatory signs. This helps create a clear understanding of road rules and promotes safer driving behaviors.