This is a Sahara 5.5" x 2 3/8" underwelt with a 19 L brown ribbon. It could be dark mocha - I'm not sure as I only specified a slightly warmer and lighter shade than a typical dark brown. By the way, the brim is very malleable due to the welted edge. It can be worn hollywood style or snapped throughout the front and holds its shape very well.
Ribbon detail:
Ribbon detail: