The value structure of John Marin is mid-key: quiet, controlled, and cohesive. John Marin balances warm and cool with remarkable evenness, giving the composition its characteristic vibrancy. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The highest-chroma note - #3A4569 - appears at just 12.9%, deployed as a precision accent against the quieter ground. The value range of 48 units sits in the comfortable middle: enough depth, enough light, neither extreme. The palette is recognisably John Marin's own: particular in its temperature, chroma, and the economy of its brightest note.