Sanyu is strongly light-biased - shadow is suggested rather than declared. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. #E1D5C1 claims 34.2% of the surface, functioning as the work's tonal foundation. The most saturated colour, #B36E68, is reserved to 10.5% of the surface, where it acts as a focal punctuation. 65 units of value range underpin the palette's structural clarity: the eye always knows where light falls. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. The palette is a signature: Sanyu's particular sense of value, warmth, and colour weight made legible.