Rare Beauty Nearly Mauve is a warm mauve with a jelly finish that is permanent and retails for $18.00. In comparison, Sephora Oui (03) is a warm pink with a cream finish that is permanent and retails for $8.00.
Sephora Oui (03) is 85% similar — it is less shimmery, lighter, more pigmented, warmer, less glossy.