Gilbert Stuart occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. 27.9% of the palette belongs to #716F5E, a concentration that makes it the unmistakable visual centre. The most saturated colour, #E9DCF1, is reserved to 6.0% of the surface, where it acts as a focal punctuation. At 71 units of value range, the palette has the tonal breadth to sustain complex spatial readings. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. This is palette 4 of Gilbert Stuart's sequence - a single chapter in a chromatic story told across many works.