What color are airport taxiways identified by at night?

Airport taxiways are identified by blue lights at night. These blue lights serve a critical purpose in aviation safety by clearly delineating the path that aircraft should follow when taxiing to and from runways or other areas of the airport. By using blue lighting, pilots can easily distinguish taxiways from runways, as runways are typically marked with white lights. This color coding helps to prevent confusion, especially in low visibility conditions, ensuring pilots can navigate the airport environment safely and efficiently.