I dyed my dark blonde hair brown with blonde highlights last night. It came out in a reddish tint. Can I redye it immediately?

Yes, you can. It may have little or a lot of damge. Since it's a dark blonde, chances are it will be minium damge. But I don't know your hair type. The best thing for you to do is buy a hair dye that will take the hair dye OUT. They sell them at Rite Aid and hair supply stores. I can't remember the name of the damn thing... but it works mighty fine! Best of luck!

If your hair is in good condition, you can re-color it right away. To tone down the red tint, you will need to use a green-base "ash" hair color to neutralize the red tones. You should choose a color that's closet to your hair color.