What color are taxiway edge lights typically?

Taxiway edge lights are typically blue. This color is standardized across airports to help pilots and vehicle operators distinguish between the taxiways and the runway environment. Blue lights are positioned along the edges of taxiways to guide taxiing aircraft and ground vehicles, providing a clear indication of the safe path for movement on the airside of the airport.

The use of blue lights also helps in reducing confusion, as red lights are generally used for indicating that an area is restricted or that a runway is active and not available for taxiing. Green lights, on the other hand, are normally associated with runway center lines, while white lights are commonly used for runway edges. Therefore, blue lights serve a critical function in maintaining safety and operational integrity on taxiways.