YSL Rouge Tuxedo (45) is a cool red with a natural finish that is permanent and retails for $38.00. In comparison, Guerlain Fucshia Flush (409) is a warm plum with a luminous finish that is permanent and retails for $39.00.
Guerlain Fucshia Flush (409) is 90% similar — it is less shimmery, less pigmented.