the.com/dimness
the slow surrender of the visible, where shadows finally win the argument with light
eye trickRods take 30 minutes to fully adapt to dark
twilight statesMesopic vision blends rod and cone signals
color thiefDim light drains hue before it drains shape
candle mathOne candle is roughly one candela of brightness
purkinje shiftReds darken first, blues glow longest at dusk