Ok, so I have lots of experience tie dying with procion dyes and I've also dyed protein fibers with kool-aid. But I am thinking about dying my white towels off white. I want the look of "unbleached" or natural cotton.
(As an aside, I bought white towels for my bathroom thinking that if I always got white towels they would always match and I could keep them bright with bleach. Not so. Something in my water is making them really dingy and no matter what I try they still look that way. So I'm on to plan B. Only buy unbleached cotton. Besides, I want my next towel purchase to be unbleached organic anyway.)
So do I try Rit or procion in ivory? Tea or coffee dye? Anyone have any advice for me?