BLUE

a primary color, of which the sapphire stone represents a type. Artists divided the shades into cobalt, indigo, Pru ian, and ultramarine. There are many coloquial uses. From XVII. cent. until 1864 there were Red, White and B. Squadrons in the Navy; the Royal Horse Guards (XVII cent.) were known as ‘the B’s’; the ‘b. Peter’ (contraction of b. repeater) is a ship’s flag hoisted as signal of approaching departure; a univ. B. is a member of Oxford (dark} or Cambridge (light) Univ. who poe in matches, or takes part in the boat race, between these univ’s.