Dreaming of dyeing hair is a sign of lack of confidence and negativity as per dream meaning and interpretation. The dream of dying hair means you will try to hide your real self or personality to make some gains. But the truth will reveal itself pretty quickly resulting in heart break and humiliation.
Dream of dyeing your own hair means lack of self belief. It also means you want to hide something from public. It also means you might have done something and now you want to hide it from family or society.
Dream of someone else dyeing hair means you will witness something related to other people. It also means you will come to know about the secret of others.
Dream of dyeing hair red is associated with fights.
Dream of dyeing hair green is associated with going against the wishes of family or friends.
Dreaming of dyeing hair multicolor means freedom.