ColourPop HWY 1 is a warm brown with a semi-matte finish that is permanent in palette and retails for $4.50. In comparison, Make Up For Ever M603 Cinnamon is a warm brown with a matte finish that is permanent and retails for $17.00.
Make Up For Ever M603 Cinnamon is 85% similar — it is less shimmery, lighter, warmer.