The value structure of William-Adolphe Bouguereau is mid-key: quiet, controlled, and cohesive. William-Adolphe Bouguereau balances warm and cool with remarkable evenness, giving the composition its characteristic vibrancy. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. The saturated accent, #5F3B1C, registers at 9.3% - sparse enough to feel like a deliberate surprise. The value range spans 61 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. In the context of William-Adolphe Bouguereau's full range of palettes, group 15 represents one movement in an ongoing chromatic dialogue.