Which color is used for taxiway centerline lights?

Taxiway centerline lights are used to provide visual guidance to pilots when taxiing their aircraft on the ground. The standard color for these lights is green. This color is used because it is easily distinguishable and can effectively convey to the pilot the path they should follow while taxiing, ensuring safe and efficient movement on the airport's taxiway system.

The choice of green helps enhance visibility during night operations and in low-visibility conditions, making it a crucial element in ground guidance systems at airports. Other colors serve different purposes; for example, red lights often indicate the edges of runways, while blue lights are typically used for taxiway edges. White lights are commonly used for runway centerlines, distinguishing their function from that of taxiway centerline lights.