The value structure of Jan van Eyck is mid-key: quiet, controlled, and cohesive. The dominant temperature is warm, with earth tones and fire-hues setting the emotional key. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. #C4935A delivers the chromatic peak at only 6.3% - a small shot of colour with outsized visual impact. The full value range is 71 units: broad enough to build convincing three-dimensional form. In the context of Jan van Eyck's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.