Values in Alexandre Charles Guillemot rest in the mid-range - neither dramatically lit nor steeped in shadow. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. Only 10.0% is devoted to #432918, yet that small allocation delivers the palette's entire chromatic tension. The full value range is 57 units: broad enough to build convincing three-dimensional form. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Alexandre Charles Guillemot arrived at this balance through long practice; the palette carries the weight of that experience.