Steel Column sets the weight of the palette in authority and sophistication, and Frame is the swatch that breaks rank: a single charcoal that stops the set reading as one note. Steel Column to Travertine spans 89 points of lightness, so the palette can carry its own hierarchy without reaching for a second one. Saturation averages 7 percent, so close to grey that River Green reads as a colour accent purely by being the least grey thing present.
Steel Column reads as pure authority: sophistication, power, and the visual weight that makes everything placed near it feel more serious.
Frame is black's softer relative, still authoritative, but with enough warmth to feel considered rather than severe.
River Green a sage or eucalyptus green, growth read through a calmer, more contemplative filter.
Glass Edge functions as quiet breathing room, understated, unobtrusive, built to let other colors do the talking.
Travertine reads as purity and openness, the color of empty space, clarity, and things left deliberately unresolved.
The glass tower as global default - after Johnson and Hitchcock's 1932 exhibition, Mies's steel skeleton and curtain wall became the template for every postwar corporate headquarters from New York to Tokyo to São Paulo.
Explore the full International Style style guideIts decade on the timeline · 1930s