So I dyed my hair a soft black, which came out blue black until it fade, then I decide after three months to dye my hair a dark reddish color. so now my hair is black with reddish color on my roots. Do I redye it that reddish color or Do i dye it black again? also if i dye it a dark brown color after if fades will i end up with the same results(as in hot roots) or will i get the dark brown?