Outsider art is high-key - luminous, open, and weighted toward light. Temperature is balanced: the palette pits warm earth against cool sky without declaring a winner. Chroma is moderate: colours carry enough saturation to be read as colour, but the palette stops well short of garish intensity. Rather than a studied accent, #CE8D17 takes 21.1% - a bold allocation that saturates the composition's atmosphere. A value spread of 71 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. Together these qualities point to the open-air Impressionist method: recording light rather than local colour.