Values in Publio de Tommasi rest in the mid-range - neither dramatically lit nor steeped in shadow. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The most saturated colour, #786746, is reserved to 7.4% of the surface, where it acts as a focal punctuation. Value range is moderate at 45 units - enough contrast for legibility, not so much as to fragment the tonal unity. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. In the context of Publio de Tommasi's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.