The value structure of Bernard Boutet de Monvel is mid-key: quiet, controlled, and cohesive. Bernard Boutet de Monvel keeps warm and cool in parity, a balance that lends the work a perceptual shimmer. All colours lean toward grey, building depth through value rather than colour punch. Only 10.0% is devoted to #91755A, yet that small allocation delivers the palette's entire chromatic tension. 60 units of value range underpin the palette's structural clarity: the eye always knows where light falls. These proportions encode Bernard Boutet de Monvel's instinctive sense of how much of each quality the eye can hold.