Geertgen tot Sint Jans works almost entirely in the lower half of the value scale, privileging depth over brilliance. Geertgen tot Sint Jans orchestrates warmth above all else - reds, ambers, and siennas take the lead. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. #111A1F at 29.0% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. #835128 functions as the palette's exclamation mark: highest chroma, lowest percentage (5.4%). The full value range is 57 units: broad enough to build convincing three-dimensional form. Together these qualities place Geertgen tot Sint Jans firmly in the tonal tradition - concerned with mood and atmosphere rather than chromatic display. This is palette 4 of Geertgen tot Sint Jans's sequence - a single chapter in a chromatic story told across many works.