L'Oreal Pink Flamingo (180) is a cool fuchsia with a luminous finish that is permanent and retails for $8.99. 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 85% similar — it is brighter, darker.