What eats a vicuna?
Vicuna is technically a fiber made from the wool of an animal called the vicuna. It's natural color is a sort of goldish brown. And many garments made from vicuna are this same color. It has a texture somewhat like cashmere, but it is much more expensive. Vicuna when referenced as a color is sort of gold-brown. It's a very rich looking color. Picture a very rich man's overcoat from the 1930s.
"Vicuna" refers to a large South American animal, a camelid, understood to be related to the llama and perhaps also the alpaca. Its natural habitat is the alpine regions of the Andes mountains. "Vicuna" may also refer to the very fine (and valuable) wool which comes from the animal of the same name.