ColourPop Mischievous is a warm plum with a metallic finish that is limited edition and retails for $4.50. In comparison, Urban Decay Backfire (Afterdark) is a warm plum with a frost finish that is permanent in palette and retails for $19.00.
Urban Decay Backfire (Afterdark) is 95% similar — it is more shimmery, darker, cooler.