Quilt Top Faded Unto Back?

I washed a handmade quilt that has an off white back to it. It stayed in the washer for an hour before I put it in the dryer. I forgot about it! I didn't see that the colors from the front of the quilt had bled on the back off white side of the quilt until I took it out of the dryer. Anything I can do to get this out?

By clm