How did deep purple get its name?

Answer:
The band gets it's name from a favourite song of guitarist, Ritchie Blackmore's Mum..
Up until adopting Deep Purple, the band WA sknown as "Roundabout".
The song was covered with some success by Donnie and Marie Osmond (!) in the 1970's..
First answer by ID2323794022. Last edit by ID2323794022. Question popularity: 1 [recommend question].