Raphael Kirchner is high-key - luminous, open, and weighted toward light. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. A single dominant - #DCCFB8 at 37.4% - sets the character of the whole composition. #D3BB7B delivers the chromatic peak at only 5.9% - a small shot of colour with outsized visual impact. A value spread of 60 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Palette 4 sits within the larger chromatic argument that Raphael Kirchner's complete body of work advances.