Thank you!
Artemicion is the only known purple moogle in all of Final Fantasy ^^
He's from FFIX I believe. He ran the whole Mog-Net mail service but used all the mail sorting machine's grease to make his fur soft and shiny and thus put his own business to a halt, thus comes in Zidane to complete the quest.
Vanity would be my vice too if I was the only purple moogle in existance >.>