If you can't find the same fabric, check out some of the marbles or other blender fabrics. If you can, bring the quilt top to the shop with you and "test drive" a few to see what looks best with it. I like borders on my quilts, regardless of the size, so I tend to add a couple, one narrow, one wider. It's like adding matting/framing to a picture. It finishes it off nicely.