Xu Beihong 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. All colours lean toward grey, building depth through value rather than colour punch. At 35.8%, #E3DBCC functions less as a colour accent and more as a complete atmospheric environment. The most saturated colour, #756144, is reserved to 3.1% of the surface, where it acts as a focal punctuation. At 61 units of value range, the palette has the tonal breadth to sustain complex spatial readings. 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 Xu Beihong's sequence - a single chapter in a chromatic story told across many works.