The high-key values of Léon Bazile Perrault give it an effulgent, almost bleached quality. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. #BB983C functions as the palette's exclamation mark: highest chroma, lowest percentage (6.5%). At 74 units of value range, the palette has the tonal breadth to sustain complex spatial readings. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. This is palette 1 of Léon Bazile Perrault's sequence - a single chapter in a chromatic story told across many works.