Which begs the age-old question, if it fluoresces in light, what color would it be in the dark?

Ask Schrödinger's cat.

 

Relying on uncalibrated cameras and monitors works for smiling faces but can be very poor for color measurement and display,

 

Two times you can say that. UMMM?

That's funny - people here have argued the color codes of resistors pictured in the thread all because true color representation isn't universal to all monitors.

 

Both before and after cataract surgery my ability to read the color codes on metal film resistors is greatly enhanced when using a small white LED flashlight with a particular LED in it. I found that the color stripes would undergo metamerism when viewed under various light sources. Now that flashlight and a magnifying glass are always at the ready.

What LED and colour temperature?

Excellent point. However, I'm acutely aware of spinning cutters and the potential for loose clothing getting snagged and pulled into the blades. But I laugh with you on your comment.

I recall arguments here on this forum about colors on a resistor. When I see what appears to me as Red Red Orange on MY screens, others, and not just a few, saw Brown Black Yellow. Of course I'm making up the colors, but the point is that what I see on my screen is often different from what the majority sees on their screens. Hence, if someone posts a picture of a resistor and asks what the color code translates to - I stay the heck away from answering because I have no idea how MY screens may be altering the colors. Nor do I know what sort of lighting the TS may be asking about used.

As a child I often wondered if everyone else experienced the "same" reality as me both mentally and physically. It's obvious with conditions such as dementia and schizophrenia and even drugs that the mind is naturally a powerful thing that can override the physical stimulus in many ways. Likewise we can all relate that the sky is blue, but what is blue besides a wavelength? How can myself personally be sure that what you see, hear, smell, taste and feel is the same interaction that I experience? Sure scientists can say they know how the body works and therefore this and that must be factual, but at the end of the day I'm operating on extreme conjecture set forth by society in which we must trust the greatest minds to tell us what's what, furthermore to challenge the scientific community has historical come with immense ridicule. This is to say that my own solipsism is the only thing I can be sure is true. I'm certainly not a crackpot with wild theories (I hope) although I take great care to investigate the limits of my mind. A very interesting philosophical analysis to say the least.

 

We are getting off topic. I know only that is "white". Looks like a cool white.
You might want to open a thread on your topic. In the meantime:
https://en.m.wikipedia.org/wiki/Color_vision