Here is my test strip on pale yellow fabric. I tried Purel, peroxide, nail polish remover, hairspray, goo gone and magic eraser. Purel-no. Nail polish remover seems to spread it but I would be afraid to use it on a quilt. Goo gone-no. Magic Eraser-no.
I had the best results with a cap of hair spray and Q-tips but that was with the fabric on a solid surface and after drying the fabric is stiff. The area would need to be washed and depending on the quilt backing, the hair spray might take the colour out? Wish I had better news!