Pietro Longhi is strongly light-biased - shadow is suggested rather than declared. Temperature is cool-dominant, with blue and green families claiming the largest areas. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. #EEEACE claims 32.5% of the surface, functioning as the work's tonal foundation. #C75E34 functions as the palette's exclamation mark: highest chroma, lowest percentage (2.7%). At 69 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. In the context of Pietro Longhi's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.