Jean-Baptiste Carpeaux is low-key throughout, a quality associated with Nocturnal Sienna - deep shadows dominate the composition. Temperature reads distinctly warm: the reds and earth tones from Jean-Baptiste Carpeaux carry the compositional weight. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The highest-chroma note - #CAB89E - appears at just 3.2%, deployed as a precision accent against the quieter ground. The full value range is 59 units: broad enough to build convincing three-dimensional form. The combination of low values, muted chroma, and compressed range is the signature of the Tonalist mode - painting as atmosphere. Jean-Baptiste Carpeaux's palette 5 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.