Post-Impressionism works almost entirely in the lower half of the value scale, privileging depth over brilliance. Warmth dominates - the palette leans heavily on the yellow-orange-red arc of the colour wheel. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. #9C7347 functions as the palette's exclamation mark: highest chroma, lowest percentage (4.7%). 56 units of value range underpin the palette's structural clarity: the eye always knows where light falls. Together these qualities place the palette firmly in the tonal tradition - concerned with mood and atmosphere rather than chromatic display.