What color are the Clearance and Obstruction Lights?

Clearance and obstruction lights are specifically designed to enhance safety in aviation environments by marking obstructions in navigable airspace. The standard color for these lights is red. This design choice ensures high visibility against both day and night backgrounds, especially in low-light conditions, thereby alerting pilots and other operators to the presence of potential hazards.

The red color is recognized universally in aviation regulations, making it an important aspect of safety protocols. This ensures that air traffic and ground personnel can easily identify and avoid obstacles, contributing to the overall safety of air operations. In contrast, the other colors mentioned are used for different purposes, such as navigation or emergency signals, but do not serve the same function as clearance and obstruction lights.