Léon Bazile Perrault is low-key throughout, a quality associated with Nocturnal Sienna - deep shadows dominate the composition. The dominant temperature is warm, with earth tones and fire-hues setting the emotional key. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. 33.1% of the palette belongs to #101113, a concentration that makes it the unmistakable visual centre. The most saturated colour, #D0AD92, is reserved to 3.5% of the surface, where it acts as a focal punctuation. The value range spans 64 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. This tonal restraint is characteristic of the Léon Bazile Perrault approach: colour serves light, not the reverse. This is palette 9 of Léon Bazile Perrault's sequence - a single chapter in a chromatic story told across many works.