From the late 1920s until the early 1950s, stop signs were not red, but what color?
For nearly 30 years, yellow was the standard color for stop signs. In fact, the red stop sign that we are familiar with today has only been the standard for the last 70 years. Previously, the octagonal traffic sign was yellow, somewhat smaller than the modern version, and featured the word “STOP” in black letters. Yellow was chosen for its high visibility, particularly at night, ensuring that drivers could easily see and respond to the signs. It wasn’t until 1954 that the stop sign adopted the bright red color with white letters that we are familiar with today.
Answer: Yellow