ColourPop Off-the-Wall is a cool red with a semi-matte finish that is limited edition and retails for $4.50. In comparison, Natasha Denona Magentic (142M) is a warm fuchsia with a pearl finish that is discontinued and retails for $29.00.
Natasha Denona Magentic (142M) is 80% similar — it is more shimmery, darker.