Color Blindness and HP Prime keys color choice

[HP67]

I don't know the specific details but I used to be interested in photography and a guy I know who was a chemist and did his own printing showed me how hard it is to get all the colors right. I don't know if this applies to digital photography but I understand generally it's a delicate balance and it's often possible to get one part of the spectrum correct at the expense of others and when colors come out of the abstract and get put down on paper or plastic things often change. Too complicated for me so I took up other hobbies