 It was also authorized for wear by enlisted men and women at their own expense when off duty.The Army blue uniform comprises a dark-blue coat, light-blue or dark-blue (general officers) trousers, a white turndown-collar shirt, black four-in-hand or double Windsor necktie, a black beret, and often a ceremonial belt.When worn with a black bow tie, the Army blue uniform constitutes a formal uniform and corresponds to a civilian tuxedo.