Tom Ford Beauty Black Orchid is a cool burgundy with a pearl finish that is limited edition and retails for $57.00. In comparison, Obsessive Compulsive Cosmetics Black Dahlia is a neutral burgundy with a natural finish that is discontinued and retails for $18.00.
Obsessive Compulsive Cosmetics Black Dahlia is 90% similar — it is darker, more muted, cooler.