Milani Bella Teal (21) is a cool teal with a metallic finish that is permanent and retails for $4.49. In comparison, Natasha Denona Deep Teal (19M) is a cool teal with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Deep Teal (19M) is 85% similar — it is darker.