Which color represents recreational and cultural interest on signs?

The color brown is specifically designated for signaging that pertains to recreational and cultural interest. This standardized color coding is utilized to convey information related to parks, historical sites, and similar attractions to drivers and pedestrians. Using brown helps to visually differentiate these types of amenities from other kinds of roadside information, creating a clear and effective communication mechanism for identifying recreational areas and cultural points of interest.

In contrast, the other colors serve different purposes: yellow typically indicates caution and warns of potential hazards, green is used for signs providing directional information or guiding travelers on routes, and blue is associated with service signs, such as those indicating rest areas, lodging, and food. These other colors do not convey cultural or recreational themes, making brown the clear and correct choice for this context.