Thanks! This put me on the right track. I know nothing about editing/modding java, but with some research I was actually able to modify the base game jar file to change the color codes. I really only needed to change the green to something else (in practice I was able to see the difference between yellow and orange). I changed it to hot pink and ended up with:
If either of you,
lifesuckz69 or
mememeandmyself (or any other colorblind players) are interested, I can write up a guide on the software I used and what I had to change. (Fairly easy once you know what to do, and what software to use). I could also just modify the jar files and create individual mods that way for a couple of people.
Otherwise, if anyone wants to hit me up and help me create a real mod for changing the colors, I'd be down to try it, just no reason to do it only for myself.