I've been sending my ilvl 101 Archer retainer out on quick ventures consistently for 3 weeks now. pretty much every hour that I'm awake, give or take a couple days around Christmas. I've spent somewhere around 300 ventures and I *still* haven't seen a single Pure White or Jet Black dye. I've got 8 each of Metallic Gold and Silver, but none of the others. This is super frustrating because I just want one freaking Pure White dye for my wedding dress! I get rare items and low chances, but 3 weeks of continuous venturing? That's a bit ridiculous >.<