The value structure of Cubo-Expressionism is mid-key: quiet, controlled, and cohesive. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Mid-saturation across the board: the palette has colour character without chromatic excess. #A1592B functions as the palette's exclamation mark: highest chroma, lowest percentage (6.1%). At 51 units across the value scale, the palette keeps contrast readable without letting it dominate. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source.