Charles Olivier de Penne distributes its values across the middle register, creating harmony without high contrast. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The saturated accent, #A47E43, registers at 4.3% - sparse enough to feel like a deliberate surprise. At 47 units across the value scale, the palette keeps contrast readable without letting it dominate. 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 Charles Olivier de Penne's sequence - a single chapter in a chromatic story told across many works.