That Feria stuff is a JOKE!! I, too, ended up with maroon/purple hair

when I used it. I tried to get my hair back to normal with another store bought dye and it didn't do a thing.
I had to spend nearly $120 and 6 hours at the salon to get mine fixed. My hair is a dirty blonde color to the middle of my back and the stylist had to bleach it, then color, then color some more, then highlight to get it to look semi-normal.
Sorry to say, but I think you'd best go to the salon. And, stay away from Feria!!