Urban Decay Backfire (Afterdark) is a warm plum with a frost finish that is permanent in palette and retails for $19.00. In comparison, Natasha Denona Swing (402M) is a warm plum with a pearl finish that is permanent in palette and retails for $29.00.
Natasha Denona Swing (402M) is 90% similar — it is less shimmery, darker, warmer.