Francesco Guardi distributes its values across the middle register, creating harmony without high contrast. Francesco Guardi builds on cool foundations: the palette favours the blue-cyan-green arc. All colours lean toward grey, building depth through value rather than colour punch. #5E523A functions as the palette's exclamation mark: highest chroma, lowest percentage (12.5%). 62 units of value range underpin the palette's structural clarity: the eye always knows where light falls. 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 Francesco Guardi's complete body of work advances.