MAC Aim for Gorgeous is a cool fuchsia with a satin finish that is limited edition and retails for $19.00. In comparison, YSL Fuchsia Tourbillon (31) is a cool fuchsia with a glossy finish that is permanent and retails for $34.00.
YSL Fuchsia Tourbillon (31) is 90% similar — it is lighter, brighter, glossier.