Joseph Anton Koch distributes its values across the middle register, creating harmony without high contrast. The dominant temperature is warm, with earth tones and fire-hues setting the emotional key. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. #C1AB8B functions as the palette's exclamation mark: highest chroma, lowest percentage (9.1%). At 59 units of value range, the palette has the tonal breadth to sustain complex spatial readings. In the context of Joseph Anton Koch's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.