Theo van Doesburg sits in the centre of the value range, lending the palette a sense of even, sustained light. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. All colours lean toward grey, building depth through value rather than colour punch. #616D5A is not a small accent - at 21.7% it qualifies as a major presence and gives the palette its chromatic identity. From deepest dark to palest light, the palette traverses 74 units of the value scale - a span that creates natural depth. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 9 sits within the larger chromatic argument that Theo van Doesburg's complete body of work advances.