Theophile Steinlen is strongly light-biased - shadow is suggested rather than declared. 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. At 4.4%, #C09E74 carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. 64 units of value range underpin the palette's structural clarity: the eye always knows where light falls. 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 Theophile Steinlen's sequence - a single chapter in a chromatic story told across many works.