B1
very dark blue
Dictionary examples:
My navy blue car is so dark, I sometimes can't find it in parking lots! (0.0)
I accidentally dyed all my white clothes navy blue. Now I look like a blueberry! (0.0)
I wore a navy blue suit to a party. Everyone thought I was a police officer! (0.0)
He was wearing a navy blue sweater. (37.8)