What color are service signs commonly associated with?

Service signs are commonly associated with the color blue. This color is used to indicate various services available to drivers, such as rest areas, gas stations, food, lodging, and other types of assistance. Blue signs help travelers identify necessary services along the road, enhancing their safety and convenience during their journey.

In contrast, other colors like green might indicate directional information or guide signs, red signals prohibitory messages or warnings, and yellow is often used for cautionary alerts. Understanding the specific use of colors for different types of signage is crucial for interpreting road information correctly and ensuring safe driving practices.