About

Seoulnight is a fictional editor color scheme, built as a demonstration site for the Hwaro static site generator. It borrows its palette from Seoul between the last train and the first: the deep blue the Han River holds under bridge lights, the magenta of sign tubes in Euljiro, the vermilion painted under palace eaves, the yellow that ginkgo trees drop across Jongno every November.

The scheme is tuned by Chaerin Yun, a fictional systems programmer who keeps the project as a night-shift hobby. The rules she works by are short. Every color must survive six hours of continuous reading at low screen brightness. Every color must clear a 4.5 to 1 contrast ratio against the background, measured, not eyeballed. And no color may be so saturated that it pulls the eye away from the code that is actually being read.

Names matter here as much as values. A hex code tells you what a color is, but a name tells you what it is for. Calling the function color hangang is a reminder that calls are supposed to flow; calling the comment color angae, fog, is a reminder that commentary should sit behind the code, not in front of it.

The notes section is the project devlog. Each entry records one decision: what was changed, what was measured, and what the city block that inspired it looks like after dark.