Henri Martin occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Henri Martin tilts toward cool - blues and silver-greys carry the structural weight. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. The most saturated colour, #C7B38B, is reserved to 6.8% of the surface, where it acts as a focal punctuation. 46 units of value spread create a palette that is varied but unified - contrast in the service of harmony. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. Palette 13 sits within the larger chromatic argument that Henri Martin's complete body of work advances.