The value structure of Regionalism is mid-key: quiet, controlled, and cohesive. The palette balances warm and cool with remarkable evenness, giving the composition its characteristic vibrancy. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. #D3C098 functions as the palette's exclamation mark: highest chroma, lowest percentage (5.5%). The value range spans 57 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy.