MAC Soulfully Rich is a cool burgundy with a satin finish that is permanent and retails for $18.00. In comparison, Obsessive Compulsive Cosmetics Black Metal Dahlia is a cool burgundy with a metallic finish that is discontinued and retails for $18.00.
Obsessive Compulsive Cosmetics Black Metal Dahlia is 80% similar — it is more shimmery, lighter.