Tokyo Metropolitan Teien Art Museum Style Design System (DESIGN.md, Japanese UI)

The museum itself—the former Asaka-no-miya Residence, an Art Deco building—is part of the collection. The site inherits this character: instead of white, it lays down a warm greige (#ede8e2) as the page base color, and crops photographs into arches (semicircles) to evoke the building's openings. Saturation is kept thoroughly low; the only accent colors are the deep green that recalls the "garden," and the pastel tags used to distinguish exhibition categories.