Boris Kustodiev sits in the centre of the value range, lending the palette a sense of even, sustained light. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. All colours lean toward grey, building depth through value rather than colour punch. Only 5.7% is devoted to #5A3730, yet that small allocation delivers the palette's entire chromatic tension. At 58 units of value range, the palette has the tonal breadth to sustain complex spatial readings. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Boris Kustodiev's palette 19 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.