Paul Klee is high in key: pale, luminous, and filled with optical air. Paul Klee tilts toward cool - blues and silver-greys carry the structural weight. Chroma is moderate: colours carry enough saturation to be read as colour, but the palette stops well short of garish intensity. The most saturated colour, #EDDF9B, is reserved to 6.8% of the surface, where it acts as a focal punctuation. 68 units of value range underpin the palette's structural clarity: the eye always knows where light falls. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Paul Klee's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.