The Khaki is a term derived from the Persian word Khak which means soil, mud or ash. The uniform as it it stands was first introduced in 1848 by the Corpse of Guides. The uniform was used as a means of camouflage. The Khaki color has been widely used across the world from time immemorial. The basic reason behind the usage is the camouflaging properties of the color Khaki.
Initially used for the armed forces, the color has now been used as a universal color for almost all sorts of the security forces.