The red color was chosen for its visibility, and a national standard makes stop signs easy to recognize. While blue stop signs are not used in the U.S. on official roadways, they do appear in ...
A blue stop sign is pretty rare, but many want to know why they exist and whether it means anything different than a red stop sign.
Blue is often linked to tranquility and serenity, and many people who favor this color naturally seek out calm environments.
Have you ever pulled up to a blue stop sign in Louisiana? It clearly says STOP just like the red ones, but why is it blue?