The value structure of Xul Solar is mid-key: quiet, controlled, and cohesive. Warm and cool are kept in productive tension, creating the kind of chromatic harmony that sustains the eye. Mid-saturation across the board: the palette has colour character without chromatic excess. #F4D477 at 26.1% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. Only 8.1% is devoted to #ECE5C4, yet that small allocation delivers the palette's entire chromatic tension. From deepest dark to palest light, the palette traverses 70 units of the value scale - a span that creates natural depth. Together these qualities point to the open-air Impressionist method: recording light rather than local colour. In the context of Xul Solar's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.