

Black
Black
Semi-Permanent Blue-Black Hair Dye
100ml
Our intense blue-black semi-permanent hair dye is a multi-purpose wonder, suitable for all hair shades.
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FREE delivery on orders over £25. Delivery details
Step By Step
Step By Step
As with all of our shades, the lighter the base, the more vibrant the result! To get the best results, we recommend using our High Lift Bleach Kit. Use this shade straight from the bottle on pre-lightened, bleached blonde hair - check out our swatch guide and do a strand test to get an idea of the result you are going to get. You can still use the dye on level 8 hair, or below, but the results will be tonal.
To learn how to strand test, visit our how to strand test page here.
Customise Your Colour
Customise Your Colour
Use all over for raven black hair, or add some extra depth to a lighter colour, a dash of black will create a smokey effect. Black is popular for creating shadow roots with cool-toned dyes, often paired with Sapphire, Pine Green, and Hot Purple.
Make Your Colour Last
Make Your Colour Last
Maintain your blue undertones by mixing a few drops of our Blue Power Pigments into your conditioner, it will top up your colour with a conditioning mask.
How Many Bottles Will I Need?
How Many Bottles Will I Need?
If you have short hair or are just looking to top up your colour, 1 bottle will do the job. We would recommend 2 bottles for lighter colours on short hair just so you can fully saturate each strand. 2 bottles for mid length hair - you need that full saturation and all important smooshing of the colour on your hair! Longer hair will need around 3-4 bottles to make sure every strand gets an even dose of colour.
Ingredients
Ingredients
Aqua (purified water, agua purificada, eau épurée) , Cetearyl Alcohol , Propylene Glycol , Ceteareth-20 , Guar Hydroxypropyltrimonium Chloride , Distearoylethyl Hydroxyethylmonium Methosulfate , Ceteareth-30 , Rubus Idaeus (Raspberry) Seed Oil , Helianthus Annuus (Sunflower) Seed Oil , Persea Gratissima (Avocado) Oil , Formic Acid , Phenoxyethanol , Triethylene Glycol , Basic Yellow 87 , Basic Orange 31 , Basic Red 51 , HC Blue No.15 , HC Blue No.2 , Basic Blue 99 , Basic Brown 17 , Basic Brown 16
Shipping takes approximately 3-5 working days (excluding weekends, bank holidays and Christmas).
We charge £2.99 for orders under £25. Shipping is free for all orders over £25, which will be automatically applied at checkout. This is only applicable to orders in the United Kingdom.
Unfortunately, we are unable to ship to the Channel Islands, Republic of Ireland and Isle of Man at this time.










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Gluten & Paraben Free
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Lasts 10-12 Washes
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Made In The UK
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PETA Approved
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PPD & Ammonia Free
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Vegan & Cruelty Free
DIY-DYERS IN ACTION
Product FAQ's
Should I do a strand test before?
YES! We always recommend doing a Strand Test as this will give you a true indication of how the colour will take to your hair.
Check out our Strand Test Guide.
Does this work on grey/white hair?
Grey/White hair can vary massively in colour and porosity within each strand. Our Crazy Color shades work best on bleached hair, as it’s more porous and absorbs the dye better than unlightened hair. It creates a clean, uniform base for your new Crazy Color vivid!
How should I prep my hair before colour?
To get the most true-to-bottle shade, begin by pre-lightening your hair to the lightest blonde as this creates a clean uniform base for your chosen colour. Crazy Color works best on pre-washed damp/towel-dried hair. This can be messy ensure your surroundings are protected, the bathroom works best! Don't forget to wear gloves!
Checkout our How To Guide.
How do I prevent colour staining when applying?
To help prevent staining during application, we recommend always wearing gloves and protect clothing and surfaces with towels or protective coverings. You can use a barrier cream (like petroleum jelly) around the hairline, ears, and neck to stop the colour from staining the skin, or use our Crazy Color Colour Remover Wipes to remove any stains. Any splashes or drips should be wiped away immediately. After processing, rinse your hair thoroughly with cool water to help minimise any leftover colour transfer.
Should I wear gloves when applying?
Definitely! If you want to avoid having to scrub your hands afterwards! Our Semi-Permanents are saturated colours, so they can leave a colour stain on your hands - wear gloves to prevent this from happening.
How do I stop my colour bleeding?
Always rinse your hair with cold water and then apply our Anti Bleed Spray which helps to seal your colour and prevent colour bleed after dyeing – it can extend the life of your colour for up to ten extra washes! The ultra-low PH formula works in just 60 seconds, shutting down the cuticle, retaining the colour and actively extending the life of all coloured hair types.
How long will my colour last?
Semi-permanent colour fades from the first wash, that's what they are made to do. You can help maintain the health of your hair which in turn will help with the fade. Generally, our colours will fade out in between 10-12 washes but this depends on a number of factors including the health of your hair, your hair styling routine, how you wash your hair etc.
For more info checkout our Colour Care Guide
What can I use to maintain my colour?
Create a conditioning mask for your hair to maintain the vibrancy of your colour by adding a generous skoosh of your Semi-Permanent Hair Colour to our Rainbow Care Conditioner.
Taking care of your bleached & coloured hair is so important - keeping your hair in the best condition will help keep your colour vibrant for longer.
Checkout our Colour Care Guide or How To Make Semi Permanent Colour Last Longer blog.
How do I remove the colour if I don't like the shade?
Always carry out a strand test so that you can see how the colour will look on your hair prior to committing to dyeing your full head of hair. This is the simplest way to avoid unexpected or unwanted results.
Alternatively, check out our How To Remove Semi Permanent Colour Blog.
How do I dye my hair Black ?
There are 2 Crazy Color Black shades to choose from so be sure to choose the one that suits the tone you are looking for. Our 'Black' shade is an intense blue-black and our 'Natural Black' shade is a multi-tonal Natural Black with subtle brown undertones.
As usual, make sure you do a strand test to see how this colour will take to your hair.
Very dark shades can stain and may continue to run after rinsing. To prevent colour run and lock in your shade, make sure to use our Anti Bleed Spray. Our Colour Remover Wipes can help remove any traces of the shade from your skin!
Check out the tips found here for your full help guide - The Ultimate Guide to Semi Permanent's blog, Colour Care Guide, How To Make Semi Permanent Colour Last Longer blog.