John Pettie distributes its values across the middle register, creating harmony without high contrast. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. Chroma is moderate: colours carry enough saturation to be read as colour, but the palette stops well short of garish intensity. The most saturated colour, #502A19, is reserved to 5.5% of the surface, where it acts as a focal punctuation. The full value range is 78 units: broad enough to build convincing three-dimensional form. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. John Pettie's palette 1 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.