Yes, but I would then try to use brighter colors for the border(s) & binding to refocus on the joyousness in the quilt. And also keep in mind how the black is going to play with your batting. I'd make a tiny test piece with your batting to make sure it's not going to show through and/or beard with the black. Most of the time you'll be fine, but I'd just check it before putting all that work in.