I'd use black.
Welcome to the Quilting Board!

I'd use black.
If you had enough and wanted just a bit of difference, I would use the 3 black/grey fabrics from the center for a controlled scrappy binding.
Lisa
I was in the same dilemma that you are with a tablerunner and went with a patchwork binding and it looks great.
Whatever you do you will end up with a pretty quilt.
Aloha Karen
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