Natasha Denona Gray-Brown (38M) is a cool taupe with a frost finish that is permanent in palette and retails for $29.00. In comparison, Natasha Denona Maxi (458M) is a warm taupe with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Maxi (458M) is 90% similar — it is darker.