Purple rice is when black rice (otherwise known as prohibited rice) is cooked with white rice, which then brings about a purple variety generally and is consequently called "purple rice" by quite a few people. It is really not an immediate interpretation but rather something that has just gotten on with individuals.
Black rice was so uncommon in old Asian societies yet pursued its medical advantages that it was really called 'illegal rice' since it was just accessible for the Chinese head to guarantee his wellbeing and life span and was prohibited for every other person.