The value structure of John Crome is mid-key: quiet, controlled, and cohesive. Temperature is cool-dominant, with blue and green families claiming the largest areas. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The dominant colour, #36301F, takes 26.2% of the total area, establishing the overall mood before any other hue is introduced. The most saturated colour, #D1AF70, is reserved to 3.0% of the surface, where it acts as a focal punctuation. Spanning 48 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 4 sits within the larger chromatic argument that John Crome's complete body of work advances.