What color is used for location signs?

• A. Yellow on black.
• B. White on red.
• C. Black on yellow.
• D. White on blue.

Answer: (A)

Location signs are used on the airfield to tell pilots exactly where they are on the movement area, such as taxiways and runway intersections. The standard for these signs is a black background with yellow lettering, which gives strong contrast and legibility in all lighting conditions, including at night. This color combination distinguishes location signs from other sign types you’ll encounter on the airfield. For example, mandatory instruction signs are red with white characters, and direction/information signs use a yellow background with black characters. White on blue is used for different informational service signs and not for indicating your current location. So, yellow lettering on a black background identifies location signs.