quadratura occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Yellow, ochre, sienna: warm hues deployed as the palette's primary energy. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The saturated accent, #CCAA78, registers at 5.6% - sparse enough to feel like a deliberate surprise. Spanning 53 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation.