The value structure of Giorgio de Chirico is mid-key: quiet, controlled, and cohesive. Giorgio de Chirico keeps warm and cool in parity, a balance that lends the work a perceptual shimmer. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. #703E21 functions as the palette's exclamation mark: highest chroma, lowest percentage (8.6%). The full value range is 73 units: broad enough to build convincing three-dimensional form. Palette 4 sits within the larger chromatic argument that Giorgio de Chirico's complete body of work advances.