The value structure of Automatic Painting is mid-key: quiet, controlled, and cohesive. Yellow, ochre, sienna: warm hues deployed as the palette's primary energy. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The highest-chroma note - #5A3021 - appears at just 6.1%, deployed as a precision accent against the quieter ground. 52 units of value spread create a palette that is varied but unified - contrast in the service of harmony.