The value structure of Sebastian Pether is mid-key: quiet, controlled, and cohesive. Sebastian Pether tilts toward cool - blues and silver-greys carry the structural weight. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The most saturated colour, #6F541A, is reserved to 10.5% of the surface, where it acts as a focal punctuation. At 59 units of value range, the palette has the tonal breadth to sustain complex spatial readings. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. In the context of Sebastian Pether's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.