Chanel Pourpre Brun (58) is a warm plum with a semi-matte finish that is limited edition and retails for $30.00. In comparison, Natasha Denona Maroon (22M) is a warm plum with a frost finish that is permanent in palette and retails for $29.00.
Natasha Denona Maroon (22M) is 80% similar — it is more shimmery, lighter.