Values in Rupert Bunny rest in the mid-range - neither dramatically lit nor steeped in shadow. Rupert Bunny tilts toward cool - blues and silver-greys carry the structural weight. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. Only 7.6% is devoted to #4B7B74, yet that small allocation delivers the palette's entire chromatic tension. The palette spans 37 value units: a measured range that delivers coherence over drama. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Rupert Bunny's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.