Values in Karl Heinrich Jaeckel rest in the mid-range - neither dramatically lit nor steeped in shadow. Karl Heinrich Jaeckel builds on cool foundations: the palette favours the blue-cyan-green arc. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. #987043 functions as the palette's exclamation mark: highest chroma, lowest percentage (7.9%). The value range of 52 units sits in the comfortable middle: enough depth, enough light, neither extreme. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 4 sits within the larger chromatic argument that Karl Heinrich Jaeckel's complete body of work advances.