Color as System

Homage to the Square

Josef Albers (1888–1976) spent the last quarter-century of his life painting almost nothing but nested squares. The Homage to the Square series runs to more than a thousand works, each a few flat rectangles sitting inside one another, and each one tests how a color shifts with whatever surrounds it.

He set out the idea in Interaction of Color (1963). Albers distrusted abstract color theory and color wheels, and he held that you learn color by working with it: put one color next to another and look. The same swatch of paint, he showed, looks lighter on a dark field and darker on a light one, warmer beside a cool neighbor, and sometimes like a different pigment altogether once its surroundings change.

How the paintings were made

Albers fixed his variables on purpose. Each painting used a small set of nested squares placed by a strict proportional schema, a rule for how big the middle and inner squares are and where they sit. He applied paint straight from the tube so results could be repeated, worked under controlled lighting, and wrote the exact pigments and brands on the back of every panel.

With the structure held constant, color was the only thing left to vary. Generative artists work the same way when they fix a composition and sweep one parameter to see the range of results.

"In order to use color effectively it is necessary to recognize that color deceives continually." — Josef Albers

The four panels

A single square shows little, because the effect appears only in comparison. This tool shows four panels at once, all with the same inner color. Change the surrounds and that inner color seems to move: brighter in one panel, duller in another, warmer or cooler than the identical square a few inches away.

The general effect is called simultaneous contrast, a term from the chemist Chevreul. Albers built on Chevreul's work and folded it into what he called the interaction of color. When two neighboring colors are close in brightness but opposite in hue, the edge between them can seem to flicker, which is often described as vibration. The first exercise below asks you to produce it on purpose.

Albers taught this way for decades at Black Mountain College and Yale. In one interview he described the squares as demonstrations of how color could trick him, not as art. Many of the finished panels are titled Study, and the exercises here use the same word.