Also, I tend to see how people use emerald green and fire red to signal OK/KO which are two colours I really confuse. This is the case of all the alerts being fired, in general.
I use IntelliJ for my IDE, which has a color blind mode plugin. Before I discovered this, there were shades of orange and red that made some of the syntax highlighting useless.
My company uses Bitbucket, and the red/green colors they use for "lines added" and "lines removed" in code reviews are really hard to see. I usually have to use the side-by-side diff instead of the unified diff. Example here [1].
Otherwise, there's no real impact IMO. If I'm working on front-end stuff, I just use the hex codes that the designers tell me to use. If I'm working with a designer that is particularly interested in accessibility, they'll often ask me "hey can you see the colors on this layout?".
However, when lights are dim or something is obscuring my more properly-sighted eye, I do have a harder time distinguishing blue from black and purple from brown, and a few other colour confusions (yellow/white, green/teal, etc). Still doesn't really affect me in any notable way, other than people around me getting a laugh out of my inability to name all colours the way they see them.
Took a little time to remember to do it each time and required some rework a couple times when I forgot. Nothing bug though.
It gets really hard when I must choose colours. I can't mimic colours I see, or pick a good colour palette.