The value structure of Spectralism is mid-key: quiet, controlled, and cohesive. Warmth dominates - the palette leans heavily on the yellow-orange-red arc of the colour wheel. A restrained, mid-chroma palette: every hue is present and legible, but nothing shouts. The saturated accent, #4D67A7, registers at 10.5% - sparse enough to feel like a deliberate surprise. At 38 units across the value scale, the palette keeps contrast readable without letting it dominate.