Values in Adolphe Yvon 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. #653D29 functions as the palette's exclamation mark: highest chroma, lowest percentage (2.3%). 61 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 4 of Adolphe Yvon's sequence - a single chapter in a chromatic story told across many works.