Someone posted the color heat absorption chart below on HBA....
...which listed red and black as pretty high up as colors that absorb solar radiation.
I thought well, lets see if I can come up with an alternative color scheme to my Coca Cola Color Scheme, using some colors lower on the chart, since I want to try something really radical and cover my super slow flyer in boat vinyl, which costs next to nothing (maybe $100-$150 to cover entire plane).
Since I don't want Yellow (overused) or Light Blue (sky color) on my plane, that left me with mostly Pink, Purple, Blue, Light Green, and maybe Orange.
I decided to run with Pink and Purple and see what I could come up with...
My first thoughts? It's Bubbaliscious!
Seems to me at a distance no matter what high visibility colors you chose, all colors just blur into the background sky at a distance, and the highest visibility color to have, would be a mirror like finish (polished alluminum, for example, which I did) that would glint in the sun like a signal mirror when hit at the right angle.