Alfred Sisley is high in key: pale, luminous, and filled with optical air. Temperature is cool-dominant, with blue and green families claiming the largest areas. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. At 26.4%, #BEC2C7 functions less as a colour accent and more as a complete atmospheric environment. The most saturated colour, #A98C55, is reserved to 3.2% of the surface, where it acts as a focal punctuation. 62 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 3 of Alfred Sisley's sequence - a single chapter in a chromatic story told across many works.