If your attempt at blonde hair has turned more orange than blonde, you have suffered the effects of a brassy hair colour. Brassy hair colour generally comes from hair that is not quite dyed enough to be blonde, which can happen if you remove the bleach from your hair early. It can also be caused by a build-up of iron in your hair. In some cases, your hair might just naturally look brassy. Whatever the cause, fixing brassy hair is a simple and painless process, and often can be done without the help of a professional.
Use a toner with a violet or blue base colour to mask brassy hair after you have bleached your hair. Reapply toner to hair every six weeks to prevent fading and continue reducing brassy hair.
Use an iron filter if your water is iron rich, or use a clarifying shampoo to strip your hair of unnecessary minerals that add a brassy tone.
Follow the directions on your hair dye completely. Leaving dye in for too short of a time or too long a time can cause your hair to turn brassy and brittle. Carefully follow the instructions anytime you are bleaching or dying your hair, and pay attention to the time.
Use a specially formulated shampoo to reduce the brassy hair colour. Shampoos that are specially made to handle brassy hair are usually coloured blue, and they provide work just as a blue or violet toner over a period of time.
Use a multicoloured hair dye and spend time finding the right colour. Consider getting a professional opinion on which colour would stop your hair from looking brassy.
Bleach your hair in multiple steps to reduce brassiness. Dyeing dark hair blonde requires using more than one dye, and doing it in steps. Ask someone to help you, and use a moisturising conditioner afterwards to reduce the damage done to your hair.