Corpse Blue Dye

Corpse Blue Dye is a dye.

Source
Corpse Blue Dye can be obtained as a quest reward or purchased from vendors.

Quests
Corpse Blue Dye can be obtained as a reward from the following quests:
 * Ok' Zundu's Got Talent

Vendors
Corpse Blue Dye can be purchased for 1 or  from the following vendors:
 * Sahagin Vendor - Western La Noscea