On a pentagon, one point up and 1 3/8 inches (3.49 cm) on a side, divided per pale Ultramarine Blue and Golden Orange, a coiled rattlesnake Proper, all within a 1/8 inch (.32 cm) Army Green border.
The colors blue and orange are representative of the flags of South Carolina and Florida and the coiled rattlesnake is symbolic of the organization's readiness to strike.
The shoulder sleeve insignia was originally approved 51st Infantry Division on 22 October 1948. It was redesignated for the 51st Command Headquarters (Divisional) on 17 October 1963. (TIOH Dwg. No. A-1-114)