William Simpson is high in key: pale, luminous, and filled with optical air. Warmth dominates - the palette of William Simpson leans heavily on the yellow-orange-red arc of the colour wheel. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. At 38.8%, #F4E3D3 functions less as a colour accent and more as a complete atmospheric environment. The saturated accent, #934845, registers at 3.0% - sparse enough to feel like a deliberate surprise. A value spread of 70 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. In the context of William Simpson's full range of palettes, group 3 represents one movement in an ongoing chromatic dialogue.