Terrace Stone sets the weight of the palette in warmth and creativity, and Thin Sky is the swatch that breaks rank: a single blue that stops the set reading as one note. Undercroft and Terrace Stone sit 59 points of lightness apart, enough to separate a foreground from a background without forcing it. Terrace Stone and Thin Sky sit on opposite sides of the temperature line, which is the tension the palette runs on and the pair to hold apart.
Terrace Stone a burnt or terracotta orange, warmth read through a rustic, sun-worn filter.
Thin Sky is the most trusted color in color psychology: competence, stability, calm, used constantly by institutions that need to be believed.
Hanging Garden a mustard or ochre yellow, optimism weathered into something wiser and more textured.
Canyon Earth a dusty taupe-brown, quiet and unassuming.
Undercroft is black's softer relative, still authoritative, but with enough warmth to feel considered rather than severe.
A city compressed into a living vertical ecosystem - housing, transit, farms, water, work, and civic life stacked into one climate-responsive organism.
Explore the full Arcology style guideIts decade on the timeline · 1960s