Charles Le Brun is low-key throughout, a quality associated with Nocturnal Sienna - deep shadows dominate the composition. Warmth dominates - the palette of Charles Le Brun leans heavily on the yellow-orange-red arc of the colour wheel. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. #0D0C12 claims 33.1% of the surface, functioning as the work's tonal foundation. #704F3E functions as the palette's exclamation mark: highest chroma, lowest percentage (6.9%). A value spread of 60 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. This tonal restraint is characteristic of the Charles Le Brun approach: colour serves light, not the reverse. Palette 9 sits within the larger chromatic argument that Charles Le Brun's complete body of work advances.