Which color of sign is used for general warnings?

The color used for general warnings, such as those indicating caution or advising drivers about potential hazards, is yellow or yellow-green. These colors are highly visible and associated with alertness, effectively drawing attention to warnings on the road. Yellow signs often indicate caution regarding road conditions, while yellow-green signs may specifically indicate pedestrian, bicycle, or school zones, reinforcing the need for extra vigilance in those areas.

Red is typically reserved for stop signs, yield signs, and other regulatory signs that require immediate attention to ensure safety on the road. Blue signs usually provide informational or service-related guidance, such as directions to gas stations or hospitals, and white signs often convey regulations or legal requirements. Thus, yellow and yellow-green are specifically designed for general warnings, making them the correct choice in this context.