Rayonism is high in key: pale, luminous, and filled with optical air. The palette 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, #F07C2A, is reserved to 5.2% of the surface, where it acts as a focal punctuation. 67 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.