Light floods Gustave Caillebotte; the palette keeps values pale and airy across its range. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. 33.9% of the palette belongs to #E1DEEA, a concentration that makes it the unmistakable visual centre. Only 5.7% is devoted to #EAD4CA, yet that small allocation delivers the palette's entire chromatic tension. The full value range is 66 units: broad enough to build convincing three-dimensional form. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. In the context of Gustave Caillebotte's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.