The value structure of Dirk Bouts is mid-key: quiet, controlled, and cohesive. Warm hues command this palette; Dirk Bouts favours the reds, oranges, and yellows of firelight and earth. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. The most saturated colour, #71322B, is reserved to 6.2% of the surface, where it acts as a focal punctuation. At 63 units of value range, the palette has the tonal breadth to sustain complex spatial readings. In the context of Dirk Bouts's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.