I work with electronics a every day in my line of work, and am red-green colorblind. I've adapted to it over the years quite well. I do what I call "comparison shopping", I can hold up two wires and see which one looks more brown or more red and I'd say I'm right about 99.999% of the time.

The main colors I have trouble with are dark green/brown, red/brown, and blue/purple.

We bought some spools of wire one time that had red, black, brown, and blue conductors in it. I was the only tech who could tell the difference in the brown and red conductors, and I'm also the only colorblind guy. A lot of it for me is in the darker versus lighter spectrum rather than hue.

I constantly see things that non-colorblind people have a hard or impossible time seeing, just don't hand me one of those colorblindness tests and ask me what I see in it. I see a bunch of friggin' dots, that's all, lol.