The value structure of Northern Renaissance is mid-key: quiet, controlled, and cohesive. Yellow, ochre, sienna: warm hues deployed as the palette's primary energy. Colours are neither washed out nor blazing; they occupy the productive middle ground of the chroma scale. The saturated accent, #12348A, registers at 7.8% - 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.