Mid-key values give Childe Hassam its characteristic quietness - nothing blazes, nothing disappears. Temperature is cool-dominant, with blue and green families claiming the largest areas. Chroma is moderate: colours carry enough saturation to be read as colour, but the palette stops well short of garish intensity. The saturated accent, #A16C39, registers at 8.7% - sparse enough to feel like a deliberate surprise. The palette spans 51 value units: a measured range that delivers coherence over drama. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. Childe Hassam's palette 13 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.