Thomas Somerscales is high in key: pale, luminous, and filled with optical air. Temperature is cool-dominant, with blue and green families claiming the largest areas. All colours lean toward grey, building depth through value rather than colour punch. A single dominant - #ADC5D3 at 43.7% - sets the character of the whole composition. #3B6F8A functions as the palette's exclamation mark: highest chroma, lowest percentage (1.2%). At 62 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 Thomas Somerscales's full range of palettes, group 3 represents one movement in an ongoing chromatic dialogue.