What is the color of a taxiway centerline marking?

The color of a taxiway centerline marking is yellow. This is a standardized color used in aviation to guide pilots while taxiing on the airport surface, indicating the centerline of the taxiway. The use of yellow helps distinguish these markings from runway markings, which are typically white. Yellow markings are essential for ensuring safe and efficient movement of aircraft on the ground, particularly during low visibility conditions. The color yellow is widely recognized in aviation for guiding and informing pilots, which reinforces its status as the correct answer in identifying taxiway centerline markings.