The value structure of Thomas Ralph Spence is mid-key: quiet, controlled, and cohesive. Yellow, ochre, sienna: warm hues that Thomas Ralph Spence deploys as the palette's primary energy. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The most saturated colour, #8B5D36, is reserved to 7.6% of the surface, where it acts as a focal punctuation. At 52 units across the value scale, the palette keeps contrast readable without letting it dominate. Taken together, these qualities constitute Thomas Ralph Spence's chromatic voice - distinctive enough to be read across an entire body of work.