What perfumes are similar to Blue Carnation Roger & Gallet perfume?

Fragrances with the closest accord profile to Blue Carnation Roger & Gallet perfume by Roger Gallet: L'Heure Bleue Eau de Parfum by Guerlain; Opium (1977) by Yves Saint Laurent; Femme Rochas by Rochas. Each is selected by cosine similarity on accord strengths and shared notes.

Why are these perfumes considered similar?

Similarity is computed from three signals: (1) cosine similarity between accord strength vectors, (2) Jaccard overlap on note sets across the pyramid, (3) a curated "often compared to" list from community mentions. The top matches blend all three.