Simone Martini occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. The palette achieves thermal balance - reds and blues, ochres and greens, each holding the other in check. Chroma is moderate: colours carry enough saturation to be read as colour, but the palette stops well short of garish intensity. Only 3.2% is devoted to #E0C9A1, yet that small allocation delivers the palette's entire chromatic tension. The full value range is 55 units: broad enough to build convincing three-dimensional form. The palette reads as an Impressionist one - light-biased, chromatically direct, and built on temperature contrast rather than value opposition. In the context of Simone Martini's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.