[header] How to lighten naturally black coloured hair at home [title] Choose a warmer color for a reddish tone. [step] With black hair, choose a dye that's only slightly lighter than your natural hair color unless you want to lift your hair via bleaching first. Select a dye that's a lighter shade than your natural color without being radically different, such as a dark brunette shade. 
Black hair has a lot of red and copper undertones. [substeps] If you want an auburn hair color, select a reddish brown.