What is the usual color of diamond signs that warn of possible danger ahead?

Diamond-shaped signs are commonly used to alert drivers to potential hazards or changes in road conditions ahead. The color yellow is specifically chosen for these warning signs because it is highly visible and easily recognizable. This visibility is crucial for ensuring that drivers can quickly identify and respond to potential dangers, such as sharp curves, pedestrian crossings, or construction zones. The bright yellow color stands out against many backgrounds, making it effective even in low-light conditions or adverse weather. Other colors used for traffic signs serve different purposes; for example, red typically indicates stop or prohibition, while green and blue are often used for informational or guide signs. Therefore, the use of yellow for diamond signs is intentional, aligning with safety standards to prompt caution and awareness among drivers.