Hair Dye Answers

i have naturally pitch black hair & i wanted to die it to a medium or dark brown so what color hair die do i get

bleach or dye?

I’m planning on doing some kind of purple, but i really want to avoid bleaching at all costs, is it possible? Pictures of people who didn’t use bleach would be helpful. Also, any suggestions as to what purple would be best from Special Effects?

Can anyone help me reverse the purple look back to a golden brown or dark auburn without the purple.