Man Behind the Mask

You are creeping through the hallways. It's pitch-black and barely any light is seeping through the windows. You notice many doors but none of them have any chance to be a server room. Finally, you come across two rooms that from your experience with previous missions, have the highest chance to be the server room. You are figuring out which one to pick. You are almost out of time since the building opens at 12am. Its 10:30pm right now.

You close your eyes and wish yourself good luck. You must decide; The brown, or the white? Your mind is in dilemma.