Q&A for How to Dye Hair Blue

If you previously dyed hair, the leftover pigment will absorb the new dye and change the color.

No, blue hair is not a natural color. Some people with naturally very dark hair may have a slightly bluish cast in sunlight, but this is very rare.

You should wash your hair before using a semi-permanent dye. This will help the dye penetrate more deeply and the color to absorb more evenly. Do not wash immediately before using permanent color.

In a salon, hair coloring services can range from $75 to $300 or more depending on the length of your hair, the complexity of the application, and the experience of the stylist. Coloring your hair at home can usually be done for $30 or less.

Natural colors like warm browns last the longest. Light, cool colors like pastel blue and violet fade the fastest.

You should not need a toner unless you lightened your hair and it turned yellow. Putting a blue dye on yellow hair would turn the hair green.

Developer typically comes in 10, 20, 30 and 40 volumes. A 20 volume should be sufficient.

You can dye your hair at any age. Whether or not your parents will approve or permit this is up to them though, so be sure to ask first.

Yes, dying your hair is an expression of personal taste and expression, not a matter of sexual preference.

Yes. It'll gradually lessen the more you wash it, but color will run, especially at first.

If you want it to be more vibrant, yes. If you want a darker, less noticeable color, then you don't have to.

Yes, you can dye your hair at any stage or colour, but be careful not to let your roots show. Otherwise, you will have blue hair with grey roots.

Different dyes last different amounts of time, but no matter what, your roots will show eventually as your hair grows out. Colors will fade and will need to be redone over time.

You can try using some blue-colored hair chalk. It will work much like highlights. You may find this article on chalk dying your hair helpful.

You will just get better results if you do. It also depends on what color your natural hair is. If it's black or very dark, you do need to bleach your hair in order for any other color to show up.

Yes, if your hair is light blonde, the blue dye should show up as shown on the box or package.

You can, but if you are under 13, you should get parental permission first - unless you want to get in trouble.

You can't permanently dye your hair a vivid unnatural color. All colored dyes are semi-permanent.

Some department stores and pharmacies carry a brand called Splat, which is around $10.00.

It depends on how dark brown your hair is. The darker it is, the harder it will be to see the color.

Bleaching always damages your hair. You can minimize the damage by using a deep conditioning treatment before you dye your hair blue.

You can re-dye to your natural hair color. You can also buy hair color removal kits at the drug store.

Popular brands are Manic Panic, La Riche Direction or Arctic Fox. I've had the best experience with Manic Panic so far, but price-wise La Riche Direction is great too!

SPLAT! brand dye is the best I have found. It has sky-turquoise blue and royal blue. It comes in the box with the bleach (one application).

It would probably help you get a more vivid shade of color, however, if you don't mind the color being a little bit duller, you can dye it directly.

Look for the "heatless flattening hair trick" on YouTube -- it works for much longer than if you use a hair straightener.

Hair chalk tends to last until you wash it out. However, if you don't set it with hairspray after coloring you hair, then the color may only last a few hours because it is chalk. It may also get on your clothes and skin if you don't spray it.

If your hair is blonde it's light enough and if it's light to normal brown it's probably light enough but if your hair is dark brown or black you need bleach.

You can, but be careful about getting your hair wet. The color will most likely transfer into the water a little and pool water will wash the color out more quickly.

There are several ways you can resolve this. Depending on how pale the pink is, you can use a light green dye (very light, should match the shade and be on the opposite spectrum of the color wheel), apply like regular dye, and wash out after 30+ minutes. Bleach is very harsh and damaging to your hair and should be used as a last resort. There are a variety of color removes/color strip options that can be less damaging and more effective than bleach. Taking hot showers, using non-colour friendly shampoos and using hot items (straighteners, curlers) are all ways of regular stripping hair of color.