Know what you mean Doc as my eldest Son Mitch inherited his colour blindness from my wife's father. Both of them are red/green deficient but in differing degrees to the point where Mitch struggles to tell the difference between Blues & Purples as he cannot see the red component in purple. Greens, Browns & Greys can also tend to blend into one another too.
Must be a mind bender for you doing all the electronic & electrical stuff as lots of that is colour coded and in shades that are not friendly for those with any form of colour blindness.