Values in William Coulter tilt decisively toward white, giving the palette its luminous character. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The highest-chroma note - #857152 - appears at just 3.5%, deployed as a precision accent against the quieter ground. The value range spans 55 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. William Coulter's palette 1 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.