Make Up For Ever I218 Indigo Blue is a cool blue with a frost finish that is discontinued and retails for $21.00. In comparison, Natasha Denona Blue Spruce (02M) is a cool blue with a pearl finish that is permanent in palette and retails for $29.00.
Natasha Denona Blue Spruce (02M) is 95% similar — it is less shimmery, darker.