What color does navy blue woolen coat look good with scarf?

Judging from the photos, this coat is dull in color, a little gray, simple in style and full of nostalgia. Is it the effect of photography that makes this coat like this? The colors of this coat match well. Can be paired with yellow, red, dark green, white, light blue and other solid color scarves, or with plaid scarves. Because the color of the coat is a little gloomy, the color of the scarf should be bright and lively, and it is best to match bright and bright scarves such as red or ginger, so that it will look young and happy. The colors of the two scarves in the picture are very dim, not very nice colors. It may seem too dull and old-fashioned to match the coat, or it may be because of photography. Is the landlord very quiet, unassuming and likes quiet and elegant style?