John Henry Twachtman keeps values measured and balanced, a hallmark of tonal restraint. Temperature is cool-dominant, with blue and green families claiming the largest areas. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The saturated accent, #907444, registers at 9.3% - sparse enough to feel like a deliberate surprise. At 61 units of value range, the palette has the tonal breadth to sustain complex spatial readings. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. John Henry Twachtman's palette 15 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.