The value structure of Robert Henry Roe is mid-key: quiet, controlled, and cohesive. Robert Henry Roe builds on cool foundations: the palette favours the blue-cyan-green arc. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. Only 7.5% is devoted to #D0C287, yet that small allocation delivers the palette's entire chromatic tension. From deepest dark to palest light, the palette traverses 59 units of the value scale - a span that creates natural depth. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Taken together, these qualities constitute Robert Henry Roe's chromatic voice - distinctive enough to be read across an entire body of work.