The Purple Murex is a shellfish (Murex trunculus) which produces a distinctive purpledye, considered valuable in ancient times and often used to dye fabrics. The dye is sometimes called "royal" or "imperial purple" as its price put it beyond the reach of all but the wealthiest; allegedly, 60,000 murex were needed to produce one pound of dye.
Example Usage of Purple
Skyline2793: http://twitpic.com/tjq6h - A weapon design I was making. Name won't be the same. Based color will be Purple. Suggestions?
triceyFbabie: At GA State graduation des girls got on everything under there robes: Purple boots, white pants, jeans, converse, red prom gowns #hotmess!!