In 1907, Auguste and Louis Lumière presented autochrome—a revolutionary method for reproducing color in photographs. The world was stunned and enraptured. “Soon the world will be color-mad,” photographer Alfred Stieglitz wrote that July from Munich. “And Lumière will be responsible.” We’ve come a long way in the last century, and we no longer need potato starch—the crucial ingredient in the autochrome process—to render color. But the power of color hasn’t faded over time; all these decades later, the world is…