Drab (color)

Drab is a dull, light-brown color. It originally took its name from a fabric of the same color made of undyed, homespun wool. The word was first used in English in the mid-16th century. It probably originated from the Old French word "drap", which meant cloth. The word gradually came to mean dull, lifeless, or monotonous.
In military uniforms.
Several shades of drab have been used for military uniforms, including the above-mentioned light-brown color. The greenish shades of drab, known as olive drab, were used as the colors of the U.S. Army uniforms and equipment during World War II.