I heard of another lady who had a red bleed all over her white in a quilt. She washed and washed and used the dye magnets and other stuff. I can't remember what all she did use. She finally got it to a point that she could live with it. Reds are so notorious for bleeding. Argh! In this day and age they should have that problem solved, you'd think!
Anyway, keep washing. How's about some Chlorox 2? Would that help clean up the white and not bleach out the red and blue? I'd consider trying it.