The value structure of William Leighton Leitch is mid-key: quiet, controlled, and cohesive. William Leighton Leitch builds on cool foundations: the palette favours the blue-cyan-green arc. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. The highest-chroma note - #F4E5C9 - appears at just 2.7%, deployed as a precision accent against the quieter ground. The value range spans 63 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 5 sits within the larger chromatic argument that William Leighton Leitch's complete body of work advances.