Alfred Stevens is strongly light-biased - shadow is suggested rather than declared. Temperature is cool-dominant, with blue and green families claiming the largest areas. Chroma is held at a comfortable level - distinct colours, but no single hue is allowed to overwhelm. #F9E291 claims 29.6% of the surface, functioning as the work's tonal foundation. #681F0B functions as the palette's exclamation mark: highest chroma, lowest percentage (0.8%). The full value range is 56 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. Alfred Stevens's palette 1 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.