What color indicates the centerline of a taxiway?

The color that indicates the centerline of a taxiway is green. This is a standardized color coding used in aviation to enhance visibility and safety on taxiways for pilots and ground personnel. The green centerline markings help guide aircraft along the taxiway, indicating the safest path to follow while moving from the runway to the ramp, or vice versa.

Using green for the centerline aids in distinguishing the taxiway from other areas, such as runways, which have different marking and lighting standards. This visual clarity is of utmost importance, especially during nighttime or poor weather conditions, as it assists pilots in maintaining proper alignment and avoiding potential hazards.