What shape is a stop sign, and what colors does it typically have?

A stop sign is characterized by its distinct octagonal shape, which is designed to be easily recognizable to drivers from various angles. The color scheme of a stop sign consists of a bright red background with white letters spelling out the word "STOP." This combination of color and shape establishes a strong visual cue for motorists, indicating that they must come to a complete stop at an intersection or street where the sign is posted.

Using red signals danger and immediate attention, making it an ideal choice for a sign that requires action. The choice of an octagon is not only traditional but also a shape that stands out among other road signs, further emphasizing the importance and necessity of stopping for safety.