What colour hair extensions would i get?

My hair is naturally dark brown but i coloured it using xxl dye which is a purple colour (designed especially for dark hair) should i buy dark brown hair extensions an put the same dye on them? They are human hair extensions so can be dyed.

Best to go to a quality hair extensions salon in your area, so they can look at you, and go over the best hair colors that match your hair type, texture, and your goals.