Mid-key values give Impressionism its characteristic quietness - nothing blazes, nothing disappears. Built on cool foundations: the palette favours the blue-cyan-green arc. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. The saturated accent, #AC9C53, registers at 10.7% - sparse enough to feel like a deliberate surprise. Spanning 53 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively.