What colors are used for service signs?

Service signs are typically designed to provide information related to services available to motorists, such as gas stations, rest areas, and food services. The correct color scheme for these signs is white symbols on a blue background. This blue color is used specifically because it is easily recognizable and signifies that services are available. The contrast created by the white symbols ensures that the information is clear and readable, making it effective for guiding drivers to essential services while on the road.

Other options presented may reference different types of informational signs, but the established standard for service signs is the blue background with white symbols, which aids in immediate recognition and understanding while driving.