棕色：一种奇怪的颜色（Technology Connections）

Technology Connections explains why brown is not a spectral color but a context-dependent perception, essentially dark orange seen against brighter surroundings.

Why HN likes it: HN repeatedly recommends it as a surprisingly magical explainer on color perception, often cited in color-space discussions.

“made me watch a 20 minutes videos on the color brown and makes it feel like magic”