Raphael Kirchner keeps values measured and balanced, a hallmark of tonal restraint. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The highest-chroma note - #784332 - appears at just 2.9%, deployed as a precision accent against the quieter ground. The palette spans 48 value units: a measured range that delivers coherence over drama. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Raphael Kirchner's full range of palettes, group 21 represents one movement in an ongoing chromatic dialogue.