Urban Decay Monarchy is a cool purple with a glitter finish that is permanent and retails for $18.00. In comparison, Obsessive Compulsive Cosmetics Technopagan is a cool purple with a metallic finish that is discontinued and retails for $18.00.
Obsessive Compulsive Cosmetics Technopagan is 80% similar — it is less shimmery, brighter, more pigmented, cooler.