Related from same author: Generating a color spectrum for an image https://news.ycombinator.com/item?id=47783062

This is cool, I’m going to try write my own implementation to follow along as a learning exercise

Interesting design choices.

Have you ever tried allrgb.com? The idea is to use every 24-bit RGB triplet once and only once. Many people naturally choose 4096x4096 as the final image size.