What color do taxiway edge lights emit?

Taxiway edge lights are specifically designed to assist pilots in visualizing the layout of the taxiways during night operations or in low-visibility conditions. These lights emit a blue color. The blue lights mark the edges of taxiways, helping to distinguish them from runways and ensuring safe navigation on the ground.

Other options, while relating to various airport beacon systems, are not applicable to taxiway edge lights. For instance, white lights are commonly found on runways, whereas green lights indicate the approach end of runways. Yellow lights are often used for taxiway centerline lights but not for marking the edges.