The high-key values of Briton Riviere give it an effulgent, almost bleached quality. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Saturation is measured and controlled, giving the palette presence without visual aggression. The saturated accent, #513516, registers at 5.3% - sparse enough to feel like a deliberate surprise. The value range spans 56 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. 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 Briton Riviere's sequence - a single chapter in a chromatic story told across many works.