Alexandre Chapellier, 42, likes to say that he created his Parisian clothing and accessories brand, Cinabre — which sells velvet-trimmed dressing gowns and patterned silk neckties — in 2011 as an antidote to old-school luxury houses that take themselves too seriously. That lighthearted spirit is on display at the label’s new flagship, a combination boutique, office, atelier and two-suite minihotel now open for booking. One enters the four-story spot, located in a neo-Classical Ninth Arrondissement building, through a tent made from the same blue striped Pierre Frey fabric that adorns the walls of Napoleon’s Château de Malmaison. Inside, a vintage Denon DP-3000 turntable and Continental Edison speakers blast 1970s funk.