Bobbi Brown Ultra Violet is a warm purple with a satin finish that is limited edition and retails for $21.00. In comparison, Natasha Denona Nina's Orchid (82V) is a warm lavender with a satin finish that is permanent in palette and retails for $29.00.
Natasha Denona Nina's Orchid (82V) is 90% similar — it is more shimmery, darker.