Colin Graeme Roe sits in the centre of the value range, lending the palette a sense of even, sustained light. Colin Graeme Roe balances warm and cool with remarkable evenness, giving the composition its characteristic vibrancy. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. A single dominant - #9C9D9B at 26.0% - sets the character of the whole composition. At 7.4%, #746033 carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. The palette spans 50 value units: a measured range that delivers coherence over drama. Palette 4 sits within the larger chromatic argument that Colin Graeme Roe's complete body of work advances.