Adolphe Yvon sits in the centre of the value range, lending the palette a sense of even, sustained light. Adolphe Yvon 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, #A42713, is reserved to 1.6% of the surface, where it acts as a focal punctuation. The value range spans 56 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. This is the light Adolphe Yvon preferred, made measurable.