I made a rag quilt that had red flannel in it and the dye ran and turned the light blue parts pink! not good for a two year old little boy! Anyway one day at Joann's i saw some stuff made by carbona that said it would remove the dye runoff. I used it once and all the pink disappeared. I was amazed. i just looked it is called color run remover. i think you could find it stores by the laundry supplies