Henry Nelson O'Neil keeps values measured and balanced, a hallmark of tonal restraint. Henry Nelson O'Neil builds on cool foundations: the palette favours the blue-cyan-green arc. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. #1C2822 claims 27.3% of the surface, functioning as the work's tonal foundation. At 3.8%, #D3B894 carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. The palette spans 54 value units: a measured range that delivers coherence over drama. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. This is palette 2 of Henry Nelson O'Neil's sequence - a single chapter in a chromatic story told across many works.