If it's the first color the basic man should have, it's definitely a dark navy suit.
[Suit]
/ Tailorable Blue Label Bespoke Dark Navy Solid Suit. /
[Shirts]
/ Tailorable MTM Blue shirt /
[Tie]
/ Drake's Navy Blue /
[Watch]
/ Cartier Tank Silver /
[Shoes]
/ George Cleverley /
