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Wella Colour Charm Permanent - 4A/237 Medium Ash Brown

12 reviews

A permanent, medium/dark ash brown hair colour

Wella Color Charm Permanent Liquid Colour in 4A Medium Ash Brown is from the ash tonal family; meaning it is a cool toned colour.

It has a blue base colour which neutralises (or reduces) any of the unwanted orange brassiness often found in dark brown hair. Your end result is a shiny, cool toned medium/dark brown.

  • Vibrant, Long Lasting and Fade Resistant Results
  • Uses Liquifuse™ technology to saturate, penetrate and fuse colour deep within the hair
  • Excellent grey coverage
  • Deep conditioning


This colour must be mixed with developer - the dedicated Wella Color Charm 20 Vol Developer is recommended.

Always mix Wella Color Charm Permanent Hair Colour in a 1:2 mixing ratio. This means you need twice the amount of developer to colour.
One 107ml bottle of Developer is enough for one bottle of 42ml Permanent Colour.

Apply the Permanent Colour to dry hair and allow to develop for 30 minutes or up to 45 minutes for additional depth or grey coverage.

Customer Reviews
4.8 Based on 12 Reviews
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    Great coverage, beautiful colour, no brass.

    Lovely true brown colour, no brass.

    Beautiful colour without any brass or orange undertones.

    Sydney, New South Wales, Australia
    Medium ash brown

    This Colour is a lot darker then shown especially if applied to blonde hair as I did. The ash tones are really nice

    Renae T.
    Sydney, New South Wales, Australia
    Happy But my hairs not too ashy

    I liked the dye, unfortunately it wasn't really ashy for me, it definitely got rid of warmth in my hair but unfortunately I can still see new dark red hints in my scalp and through strands in my hair. Still a lot better then previous brown dyes I have used though.

    Sharon C.
    Hunters Hill, New South Wales, Australia
    Great product!!

    Wella color charm is the best tint on the market! You are assured that the color will be as expected every time, Medium Ash Brown is a great color, very cool and natural, the service is wonderful, very impressed, l will continue to use The Tint Dept for my color needs in the future.