Carolus-Duran distributes its values across the middle register, creating harmony without high contrast. Carolus-Duran 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. At 36.9%, #111011 functions less as a colour accent and more as a complete atmospheric environment. #AC7749 delivers the chromatic peak at only 2.8% - a small shot of colour with outsized visual impact. A value spread of 66 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. Carolus-Duran's palette 4 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.