I have done a red, white and black one for a SIL that I put a small black/white print on the back, and then in an offset area away from the label I placed a 2'x2' larger block mimicking a small one from the front and also used the same fabrics from the front. She loved it!

If its for the back how about Muslim??

I've seen some cute black and white prints that would make a nice backing then you could quilt either with white or with red. I agree, red is sometimes hard to match.
Sue

Sometimes I match the backing to thread color for quilting I use. Other times, I want the quilting to show more on the back, so I will choose accordingly :D:D:D

I think a red and black print would be nice.

How about MUSLIN?

When shopping online look for sales clearances.
I buy alot of backing fabric this way for as cheap as 2.99 a yard. After awhile you will find that you have enough stash to match most of your quilt tops.
My favorite colors are greens and reds so I look for those the most. Neutral colors are so much nicer than muslin.

I am starting to like Mulsim more and more...its so soft. For a bed quilt its perfect.