I have seen many times that hair can turn greenish when dyed at home. It may happen because you don’t go for the correct colour when you buy hair dye in the store. If it does happen to you, don’t panic because you can get it right without having you hair bleached or soap capped.
Any hair colour having greenish undertone can be covered by using gold colour and red mixing colour.
What you will need: Wella Color Touch 6/3 (6G) + Wella Color Touch 0/45 + Wella Color Touch 1,9% emulsion.
Mixing ratios 1:2
Leave this mixture on the whole length of your wet hair for 15 mins.