[색의 문법] 듀오톤

Duotone: a vast mountain range under a wide sky rendered using exactly two inks — deep indigo for the darkest tones and soft peach for the lightest — with every value in between being a blend of only those two. No other color appears anywhere: no green trees, no blue sky, no white. The image reads like a two-color screen print with smooth gradients. Ridges layered into the distance. No text, no letters anywhere.