I dyed a lovely cashmere jumper from the charity shop. It was lilac and I tried to dye it black as I read that cashmere will take dye. It has come out a very unflattering (on me) brown, like chestnut really. I don’t think I’m going to get it black but if I try navy next time do you think that might work? I don’t suit warm colours so need it black, navy or grey really. Somehow I think that navy might counteract the brown. Any thoughts?