You are not alone. I have a wonderful friend who is also a quilter. She isn't color blind, she just "doesn't see colors". I don't really understand what that means, but she makes lovely quilts. She doesn't have much of a stash, she purchases enough fabric for her current project and that's it. Her way of handling it - she just asks whomever happens to be standing nearby if, in their opinion, this fabric goes with that fabric. She's never had anyone refuse to help and has made quite a few friends in the process.