Sure, we all have some processor we can write hex code for in our head, ... [HP-41] is what got me hooked on programming. The idea of expanding on the base features was a revelation.

Quick hex color codes. By Macworld Staff. OCT 17, 2005 5:00 pm PDT. ... most any decent graphics program—such as Photoshop or Photoshop Elements—have such tools built-in.