What kind/s of LED/s do you think I should use or how do I find the right one/s?

Question

I have a circuit and I want to use 2 indicators. I thought that I would make one red amnd one green, but I don't want a combination because the person who uses it might be color blind and what about current?

Answer 1

You might make the red one flash to indicate an urgent situation. That way someone colorblind would think of those two LEDs as the "steady one" and the "blinking one" so color perception would not be a factor.

Answer 2

I am colorblind and definitely have big problems to distinguish all those LED colors. They usually just look to close to each other. And if I can't compare them at the same time, I most often don't know which color they are.

You could try blue and red. They are much better to distinguish for all red-green colorblind persons. But best would be to follow the idea above: make one blinking. This is definitely a solution which can be distinguished by everyone.