My MIL used a solid color backing on hers, with the binding being the darkest color in the top.
The one DH and I received as a wedding gift had pink as the color between the multicolor flowers and black as the lattice diamonds separating the various flowers. The backing was also pink and the binding black.
It was hand quilted 1/4" inside each hex.
We used it on our bed for over 20 years before it got too worn to be usable any more. Then I had it folded on a quilt rack until the house burned about 10 years ago.