Hidden Rainbow Hair: This Season’s Most Exciting Trend

Here at BB HQ, we’re completely and utterly obsessed with bright, bold and beautiful hair colours. From neon-bright UV hair colour and sleek, silver hair to perfect pastels and spicy reds, we’ve tried ’em all. No trend has quite tickled our collective pickles quite like the amazing hidden rainbow movement though! The perfect blend of quirky style and practical polish, this ‘do is quite literally business on top and a party underneath, making it a great choice for anyone seeking a unique look they can conceal or reveal in accordance to their mood.

We’re so enamoured with this riotously colourful look that we thought we’d throw together a little tutorial, detailing how to get this amazing style without a lengthy or expensive trip to the hairdressers! So, if you want to add a splash of colour to your locks, read on to find out everything you need to know about ravishingly radiant hidden rainbow hair!

Hidden Rainbow Hair: A Brief History

This Instagram-worthy technique was created by Carla Rinaldi (A stylist at Not Another Salon in London) and has exploded in popularity this Autumn! Combining punchy, vibrant shades and ‘normal’, natural colour, this breathtaking style has rapidly become a flamboyant and fierce alternative to single colour processes, highlights and ombre.

A great alternative to all out, flashy colour, this look is perfect for anyone who doesn’t want to rock a full head of luminous colour. So, if your work or uniform guidelines dictate that you can’t have any visible unnatural hair colours, this could be the tiny act of rebellion you need!

DIY Dyeing: How to Get the Look

Hidden Rainbow Hair by Not Another Salon

IG ?: @notanothersalon

This look works best on hair that’s been pre-lightened to a level 9 or 10. If you don’t want to bleach your hair, you can still create a rainbow hair look, though the colours will be muted and less vibrant (In the case of pale shades such as yellow, you’re unlikely to see a noticeable result on dark hair). If you’re not brave enough to attempt bleaching your hair at home, or you have hair that’s been previously coloured, it’s best to get your hairdresser to do this for you.

Things You’ll Need

First things first, make sure you’ve got all the supplies (And snacks, phone chargers and books) you’ll need in order to nail this look easily. The last thing you want to do is find yourself doing a mad dash through the house to track down a comb or clip! Here’s a run-down of the tools we reckon you’ll need:

  • An old towel to protect your clothing from spills
  • A tail comb to help divide your hair into sections
  • Claw clips to keep the top layer of your hair tucked away neatly
  • At least 7 hair ties to help secure your sections
  • Several pairs of disposable vinyl gloves to prevent your hands from staining
  • Different shades of hair dye (We opted for hues on the ROYGBIV sequence, applied in that order)
  • If your colours require mixing or dilution, it’s handy to have a few tint brushes and dye bowls to hand
  • If you’re a particularly messy dyer, you may want to throw down some old newspaper or drop cloths to keep your floors free from splashes
  • Petroleum jelly to apply around your hairline

How It’s Done

As always, ensure you perform a patch test before using any of your chosen dyes.  Once you’ve gathered all your supplies, make sure they’re laid out and easily accessible and then you can commence colouring!

  1. Firstly, ensure your hair is dry, free from products and thoroughly combed and detangled.
  2. Using a tail comb, separate your hair into a ‘top’ and ‘bottom’ section. You may wish to have someone help you with this step to ensure the lines are sharp and even. Take care not to have too much hair in either section, the aim is for a 75/25 split. Pin up the top section, taking care to twist the hair towards the front of your head.
  3. Next, comb your hair again and divide into an equal number of sections, securing each with a hair tie.
  4. Starting with the left side, remove the hair tie and begin to apply your chosen colour to the hair. Ensure you follow the directions included with the hair colour.
  5. Repeat this process until you have no more sections of hair left to colour, then allow the dye to sit for the recommended length of time.
  6. Once the dye has processed for the required time period, rinse the dye out section by section (To avoid colour bleeding) in cool water. Once the water runs clear, move on to the next section!

And there you have it, a simple guide to getting a stunning, rainbow-licious look!


Have you tried the #hiddenrainbow trend? Wanna show off your style? Share your selfies with us via Facebook, Instagram or Twitter using the hashtag #bblovesrainbowhair!

Written By BlueBanana