American Realism is built on dark foundations, with values clustered toward shadow. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. 39.7% of the palette belongs to #111213, a concentration that makes it the unmistakable visual centre. #B26442 delivers the chromatic peak at only 2.0% - a small shot of colour with outsized visual impact. 64 units of value range underpin the palette's structural clarity: the eye always knows where light falls. The combination of low values, muted chroma, and compressed range is the signature of the Tonalist mode - painting as atmosphere.