The value structure of Walter Osborne is mid-key: quiet, controlled, and cohesive. Temperature is cool-dominant, with blue and green families claiming the largest areas. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. The most saturated colour, #7E7747, is reserved to 8.4% of the surface, where it acts as a focal punctuation. Value range is moderate at 46 units - enough contrast for legibility, not so much as to fragment the tonal unity. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 5 sits within the larger chromatic argument that Walter Osborne's complete body of work advances.