What's the rgb value of the cursor?

[luooofan]

I can't fully understand what "reverse" means.
I think the cursor keeps one color whenever I use vim.
So am I missing something essential?
Or if the cursor color is fixed, what's the RGB value of it?

The reason why I'm confused about this is I need to set a fixed color of the cursor in Windows Terminal.
BTW, is there a better solution for terminals that don't support auto "reverse"?