I think you are making good choices here. I have an air brake system so I used Air Force One braking instead of your two listed choices. I don't really have any insight about these two. I do suggest getting the OEM tow wiring for your Jeep. Part #82216358AA. Installs into the OEM wiring...
I understand where you are coming from. Yes, those are safe colors from that perspective. I used to be a yellow car person. Can't seem to break away from white now. I'm trying.
Not sure about your statement regarding why people choose white, silver and gray vehicles. Most studies say that the safest (meaning more visible and generally involved in less accidents) vehicle color is white, followed by yellow.
Silver, gray and black on the other hand, tend to blend in and...