I find choosing a print, or a picture, that I like is a good starting point for choosing colors to go in a quilt. Looking at the fabrics in true daylight ( taking bolts to the front window ) can really surprise you, even with so-called "daylight" lightbulbs.
I also have the advantage of being able to take my glasses off, step back, and easily tell whether something jumps out at me and needs to be replaced.