The value structure of Jacoba van Heemskerck is mid-key: quiet, controlled, and cohesive. Jacoba van Heemskerck keeps warm and cool in parity, a balance that lends the work a perceptual shimmer. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. Only 3.9% is devoted to #AFA77A, yet that small allocation delivers the palette's entire chromatic tension. The value range spans 56 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. Jacoba van Heemskerck's palette 3 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.