Anton Raphael Mengs occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Colours are neither washed out nor blazing; they occupy the productive middle ground of the chroma scale. #58431B at 27.9% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. #A77B31 delivers the chromatic peak at only 3.1% - a small shot of colour with outsized visual impact. The value range of 52 units sits in the comfortable middle: enough depth, enough light, neither extreme. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. Palette 4 sits within the larger chromatic argument that Anton Raphael Mengs's complete body of work advances.