Darkness anchors Robert Harris; light is rationed, creating dramatic contrast rather than open air. Yellow, ochre, sienna: warm hues that Robert Harris deploys as the palette's primary energy. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. #21181D claims 27.1% of the surface, functioning as the work's tonal foundation. At 6.7%, #73452F carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. A value spread of 60 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. This tonal restraint is characteristic of the Robert Harris approach: colour serves light, not the reverse. In the context of Robert Harris's full range of palettes, group 5 represents one movement in an ongoing chromatic dialogue.