I second this. I am slightly color blind (like 8% of the male population is) in faint shades of light pink and pale green, they just look greyish and indistinct.
I have tried all the Destiny options and they simply don't work well. By not working well, I mean they cause strange color shifts in other things. I think it was Trinatopia that worked Ok for Crucible, but my Radar colors went from normally being Red to a sickly Yellow color.
What they need to do is add an option to make the fainter pink - green colors (at least fro me) more bold and obvious. The colors of the environment is fine, but things like Crucible are not.
Another issue is allowing us to specify the color of the reticule when ADS. Some weapons (like Whisper) have a reddish reticule and not only is that harder to detect in use, it's a real PITA when the environment is Red too.