Rudolf Schweitzer-Cumpana sits in the centre of the value range, lending the palette a sense of even, sustained light. Rudolf Schweitzer-Cumpana balances warm and cool with remarkable evenness, giving the composition its characteristic vibrancy. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. #A59863 functions as the palette's exclamation mark: highest chroma, lowest percentage (5.6%). At 60 units of value range, the palette has the tonal breadth to sustain complex spatial readings. This is palette 4 of Rudolf Schweitzer-Cumpana's sequence - a single chapter in a chromatic story told across many works.