Which fragrance house introduced L'Heure Bleue in 1912?

Guerlain introduced L’Heure Bleue in 1912.

L’Heure Bleue was created by Jacques Guerlain, one of the most important perfumers in the history of the Guerlain house. Its French name means “the blue hour,” the period around twilight when daylight fades but night has not fully arrived. That idea gives the perfume its poetic historical identity.

The fragrance is generally classified as an ambery floral with powdery and spicy facets. Bergamot, anise, carnation, rose, neroli, vanilla, iris, and tonka bean are among the materials commonly linked with its profile. Its soft, melancholy character contrasts with the brighter, more overtly citrus-led style of some earlier perfumes.

L’Heure Bleue is often discussed alongside Jacques Guerlain’s other major creations, including Mitsouko and Shalimar. It is not the same perfume as Guerlain’s Après l’Ondée, although both belong to the house’s early twentieth-century heritage and share an association with powdery, atmospheric perfumery.