The value structure of Gilbert Stuart is mid-key: quiet, controlled, and cohesive. The palette achieves thermal balance - reds and blues, ochres and greens, each holding the other in check. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. At 30.1%, #2B251D functions less as a colour accent and more as a complete atmospheric environment. Only 2.9% is devoted to #DAB582, yet that small allocation delivers the palette's entire chromatic tension. The full value range is 58 units: broad enough to build convincing three-dimensional form. In the context of Gilbert Stuart's full range of palettes, group 3 represents one movement in an ongoing chromatic dialogue.