The Wicked Witch of the West is a fictional character and the most significant antagonist in L. Frank Baum's children's book The Wonderful Wizard of Oz (1900). The witch's most popular depiction was in the classic 1939 Hollywood movie based on Baum's book, where she was portrayed by actress Margaret Hamilton. Hamilton's characterization introduced green skin and this has been continued in later literary and dramatic representations.
Purple Witch is the Wicked Witch of the North, named Mombi. She had once conquered and ruled the Gillikin Country (the northern division of L. Frank Baum's fictional land of Oz). This Country is distinguished by the color purple worn by most of the local inhabitants as well as the color of their surroundings.