Jerg Ratgeb keeps values measured and balanced, a hallmark of tonal restraint. Temperature is cool-dominant, with blue and green families claiming the largest areas. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The most saturated colour, #A07E37, is reserved to 11.6% of the surface, where it acts as a focal punctuation. Value range is moderate at 50 units - enough contrast for legibility, not so much as to fragment the tonal unity. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Jerg Ratgeb's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.