The value structure of David Roberts is mid-key: quiet, controlled, and cohesive. David Roberts 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. The most saturated colour, #C29F62, is reserved to 9.9% of the surface, where it acts as a focal punctuation. From deepest dark to palest light, the palette traverses 62 units of the value scale - a span that creates natural depth. These proportions encode David Roberts's instinctive sense of how much of each quality the eye can hold.