Natasha Denona Nina's Orchid (82V) is a warm lavender with a satin finish that is permanent in palette and retails for $29.00. In comparison, Sleek MakeUP Acid #7 is a warm lavender with a matte finish that is permanent in palette and retails for $9.99.
Sleek MakeUP Acid #7 is 80% similar — it is lighter, brighter.