My cleric was taught this over a year ago:
Haukragg asks, "Why don't I teach you how to make coppery dye, hmm?" He takes you aside and instructs you on the proper method of making coppery dye.
The recipe given is as follows: add clear dye base, add 5 doses of mashed coppery rain lily, simmer, add powdered copper fang and boil.
Haukragg adds, "Hmm, I suppose you should know how to make clear dye base as well." He flips through the pages of a few tomes before nodding to himself. "Ah, yes, of course," he mutters and begins to instruct you on the proper method of making clear dye base.
The recipe given is as follows: add water, add 4 doses of ground murdroot, add 2 doses of t'ayanad crystal, simmer, add powdered waxy grey caederine, add s'ayanad crystal, boil, add farlook vitreous humor and infuse mana.
Here is Drafix's attempt to make it: http://pastebin.com/tRgtdaXp
what he did looks right to me.
