As previously mentioned in this thread, there are a number of respected paracord sellers who offer luminous glow-in-the-dark and/or reflective paracord. You can get them in neon orange, neon green, etc. For visibility at night, there's nothing better.

In my view, if your going to be using paracord in the woods and want your paracord (or camp) to be spoted, consider using blaze or safety orange (not neon orange). It's just that you'll be shot at a lot less frequently due to mis-identification if there's hunter orange in close proximity to you. There's something to it - and also why a goodly portion of danger signs (like bridge out or unexploded ordinance) are orange.

I agree that the Type I (about 100#) [or Type II (400#)] paracord is something to be considered, and I thnk it's adequatly visible in plain white or neutral white - if that's the only color you can find it in. Unlike 550, I think a good portion of the Type 1 is real MIL-C-5040 or PIA-C-5040, so that's a bonus in addition to saving weight & space.

Now, I don't recommend this for just anyone (especially if your camping in Alabama or flying over Oklahoma), but purple and gold paracord tends to be a show stopper around here, day or night, and how! Go Tigers!!!!