Duccio occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Warm hues command this palette; Duccio favours the reds, oranges, and yellows of firelight and earth. Saturation is measured and controlled, giving the palette presence without visual aggression. The most saturated colour, #BA7552, is reserved to 7.0% of the surface, where it acts as a focal punctuation. Spanning 37 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. Palette 4 sits within the larger chromatic argument that Duccio's complete body of work advances.