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I do have a question! You may be the one who knows what I'm talking about: back in the 1990s some friends and I did an experiment using a blacklight, LSD, and some UV paints, and discovered, by accident, a distinct 3D effect under the lights with particular colors. The blue appeared as the foreground, the green in the mid range, while orange seemed to be the most distant. With those colors acting as measures of depth to the eye, I was able to create some striking 3D designs on a black poster board. Since then, I haven't been able to reproduce the effect without all of the ingredients listed above, yet I still tend to adhere to that formula of depth that I saw that night in the fluorescent paints overlaying one another on a black background in my art.
My question: was I just tripping, or is there something to the way our eye perceives distance based on color in your ultraviolet artwork?

Ahh interesting. I am familiar with this effect though I don't understand the exact cause for it beyond the cake that you baked:) Perhaps I do have a bit of insight from a digital perspective. I have looked at my own work on a computer screen with some nice 3D glasses. To my surprise, white recedes and black comes forward. I wasn't cognitively engaged with this fact until I saw through the glasses, in fact I thought it was the opposite. White always seemed to push forward but it isn't how it actually functions. After seeing this effect, I noticed that many great artists, especially concept artists in the entertainment industries, use this trick to create great depth. You will see it over and over again in digital paintings, specifically environment paintings. A big bright sky with elements fading into light atmosphere and bold, blocky dark colors in the foreground. There must be something happening in the rods and cones of the eyeball that can be enhanced with the appropriate mixture. Its like our eyesight is tuned to perceive depth at its greatest degree under a sky lit by sun as we peer out of a forest.

Not my paintings, just pointing out the use of the technique

I made a post recently on that effect, I actually learned it in college, to use value and intensity as a gauge of distance: https://steemit.com/art/@therealpaul/a-simple-trick-creating-distance-and-depth-in-landscape-art-by-using-the-colors-themselves