Values in American Realism tilt decisively toward white, giving the palette its luminous character. Built 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. The saturated accent, #3E3C1F, registers at 9.0% - sparse enough to feel like a deliberate surprise. At 66 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.