High beams are required to be what color?

High beams are required to be white because this color provides the best illumination for nighttime driving conditions. The use of white light enhances visibility by allowing drivers to see further down the road and detect obstacles, road signs, and other vehicles more effectively. This is crucial for ensuring safety during nighttime driving, as it helps drivers gauge distances and navigate challenging terrain.

Other colors like red or amber are typically reserved for other vehicle lighting purposes, such as brake lights or turn signals, and using them for high beams would decrease their effectiveness in illuminating the road. Yellow is also less effective than white light in the context of headlights, as it doesn’t provide the same level of clarity and visibility. Thus, the requirement for high beams to be white is rooted in maximizing safety and visibility on the roads.