Mid-key values give Martin Johnson Heade its characteristic quietness - nothing blazes, nothing disappears. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. The saturated accent, #5C3D2B, registers at 8.2% - sparse enough to feel like a deliberate surprise. A value spread of 59 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. The palette is a signature: Martin Johnson Heade's particular sense of value, warmth, and colour weight made legible.