Low-key values are the structural spine of Realism, giving it gravity and atmosphere. Yellow, ochre, sienna: warm hues deployed as the palette's primary energy. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. The palette gives 35.0% of the composition to a single #100E0F - a decisive chromatic anchor. The saturated accent, #673F27, registers at 4.3% - sparse enough to feel like a deliberate surprise. A value spread of 64 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. Together these qualities place the palette firmly in the tonal tradition - concerned with mood and atmosphere rather than chromatic display.