The high-key values of Henri Martin give it an effulgent, almost bleached quality. Temperature is cool-dominant, with blue and green families claiming the largest areas. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. #8D8B81 claims 27.9% of the surface, functioning as the work's tonal foundation. The highest-chroma note - #9F6042 - appears at just 3.4%, deployed as a precision accent against the quieter ground. The palette spans 48 value units: a measured range that delivers coherence over drama. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Henri Martin's palette 1 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.