Gustave Caillebotte works in the upper reaches of the value scale, creating an atmosphere of brightness and expansiveness. Temperature is cool-dominant, with blue and green families claiming the largest areas. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The highest-chroma note - #B29D82 - appears at just 9.1%, deployed as a precision accent against the quieter ground. From deepest dark to palest light, the palette traverses 66 units of the value scale - a span that creates natural depth. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Gustave Caillebotte's palette 3 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.