I have a black friend from Nigeria. He asked me if an LED would show up through his very dark skin. I said I’d find out. Anyone know?
Searched dark skin xsiid in the forum search
Further to Mrlns one above, here’s another of Rajaramjet posts and some replys following it
Here’s some more
I’m going to throw this out there ( Don’t quote me)
The first colour to be absorbed is red then orange, then yellow…
So I think @Rajaramjet Blue choice was a good one for him, and would suggest the same for your Nigerian friend, Green as a second option