The palette of William Segar sits in the lower register of the value scale - dense, contained, and weighted. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. At 28.0%, #111F1B functions less as a colour accent and more as a complete atmospheric environment. #C08E58 functions as the palette's exclamation mark: highest chroma, lowest percentage (1.9%). 57 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. Palette 4 sits within the larger chromatic argument that William Segar's complete body of work advances.