The value structure of George Hemming Mason is mid-key: quiet, controlled, and cohesive. Warmth dominates - the palette of George Hemming Mason leans heavily on the yellow-orange-red arc of the colour wheel. Mid-range chroma keeps the palette grounded - colourful but not strident. The most saturated colour, #77310F, is reserved to 9.6% of the surface, where it acts as a focal punctuation. At 41 units across the value scale, the palette keeps contrast readable without letting it dominate. This is palette 3 of George Hemming Mason's sequence - a single chapter in a chromatic story told across many works.