I am making 2 of the Jelly Roll Race quilts for my daughter's Mother's Day Out teachers because they have been so wonderful with our daughter. But being it is hard to judge colors online, what color do you suggest for the backing. I want a solid color. I plan to do a brown binding. I was thinking orange but right now, it is out of stock (the Bella Solid) so I looked at either a green or blue. Any suggestions? I am liking Moda Bella Solids since the Jelly Roll was Moda Chrysalis.