William-Adolphe Bouguereau sits in the centre of the value range, lending the palette a sense of even, sustained light. William-Adolphe Bouguereau orchestrates warmth above all else - reds, ambers, and siennas take the lead. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. #171413 at 33.6% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. #CBA884 functions as the palette's exclamation mark: highest chroma, lowest percentage (3.5%). The full value range is 66 units: broad enough to build convincing three-dimensional form. In the context of William-Adolphe Bouguereau's full range of palettes, group 18 represents one movement in an ongoing chromatic dialogue.