Will Black Dye Cover Blue Hair Color? Hide the Blue!

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The decision to change your hair color is a big one. It becomes even more crucial if you’re interested in an unusual, complex shade. You should be aware of one thing when it comes to unnatural colors: you may get bored of them more quickly than you expect! 

You might decide you want to try black over your blue this time for a change. Is it possible to dye black over blue?

Will Black Dye Cover Blue Hair Color? If your hair is in good shape and takes color well, you’ll likely be able to cover blue with black.

Let’s go over it!  


Will Black Dye Cover Blue Colored Hair?

Those who dye their hair blue love taking risks.

It’s fun and exciting and boosts confidence in your appearance. But then maybe you have a job interview or need to go to a work meeting, and you feel it’s time to say bye to blue. The problem with blue is sometimes it can be hard to get rid of. You can’t dye directly over blue with browns, reds, or other colors.

The only possible way that might work is by dying black over the blue. 

If your hair takes to color well and your hair isn’t too damaged, then you have a good chance of it working.

To do this, you need to aim for a red-based black. The red base will help to cover the blue more successfully. It can also work by going over the blue with a brown first, followed by a black.

If your hair takes to color well and your hair isn’t too damaged, then you have a good chance of it working.

How To Color Over Your Blue Hair

Having figured out that black is the perfect color replacement, let’s go over how to dye black over blue hair.

As with coloring your hair, you will follow the same steps:

  1. Be sure the dye kit you choose is permanent or semi-permanent.
  2. Prepare your hair. First of all, remember that each of these dyes must only be applied to dry hair! Ensure your locks are brushed well, separating each strand, and remove knots and kinks. If you don’t, the pigment won’t apply evenly and smoothly.
  3. Follow the coloring kit instructions and prepare the dyeing mixture by blending the components. You should have a homogeneous dye color.
  4. It’s time to put on the gloves and get started! Using an accurate application technique, begin coloring the roots of the hair and work your way upward. Be careful not to miss any of hair! Gently rub it into your hair, the same way you do with your shampoo and conditioner. 
  5. Once the dye has been applied, allow it to sit for the appropriate time as your instructions state. Don’t try to leave it in for longer.
  6. If you just colored your hair, rinse it thoroughly until the water becomes clear. Avoid shampoos and conditioners after this wash, as they can strip the pigment out of your hair. Instead, only use the conditioner that comes with the dye. 
  7. If it hasn’t been taken in some places, you can repeat the above steps in a few days.

After your hair has settled down with the color, try a deep nourishing treatment. You really want to hydrate your hair nicely. When buying these, try to get one that is for colored hair.

These will prevent the color from washing out as fast as other products.

Should I Remove The Blue First With Colored Hair Removers?

If you want, you can remove the blue. You have a few options here. You can choose a color reducer or complete stripper like Color Oops, or just leave the blue and dye over it.

But if you do that, you may get some flashes of blue in certain light. This can look amazing, but may not be what you’re looking for.

The color reducer is not as harsh on the hair, so it is better for dry, damaged hair. Color reduction removes much of the blue without changing the natural color underneath, and the dye molecules are shrunk by the reducer.

Color reduction removes much of the blue without changing the natural color underneath, and the dye molecules are shrunk by the reducer.

Once the molecules are smaller, they will easily wash out of the hair. Once it has been stripped or faded, you can apply the black dye.

Read the instructions as some strippers have a certain time frame for using new dye. 


Blue hair is fun, creative, and bold. It can be the change you are looking for. The downside with blue (like purple) is it fades a lot quicker than browns and blacks. Many people get sick of dying the faded blue and opt for something with less hassle.

Black works well and doesn’t show damage as much as the blue, blondes, and reds do.

Don’t bleach your hair if you don’t think you need to. It is much harsher on your hair.

So before doing anything else, neutralize your blue shade. Your results might be pleasantly surprising if you do that right.

Written by Kayla Young

Kayla is the founder of LuxeLuminous. She has worked professionally in the tanning industry for years. She has been interested in esthetics since childhood, and has tried every hair, skin, and makeup product ever produced (more or less).