Values in John Simpson rest in the mid-range - neither dramatically lit nor steeped in shadow. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. #764129 delivers the chromatic peak at only 3.2% - a small shot of colour with outsized visual impact. A value spread of 65 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. This is palette 4 of John Simpson's sequence - a single chapter in a chromatic story told across many works.