What do the color definitions represent in hex or rgba?

[bearcatsandor]

This is less of a bug and more of a question, but what do the color definitions in LSCOLORS represent? If i were to take a color from that file, let's say
.wv 38;5;136;1

It's obviously not rgba. How do i translate that to hex or rgba? Googling for it doesn't give me anything to go on,

I'm trying to convert a vim theme to my lscolors file.

Thank you

[rpdelaney]

I believe this is explained in the dircolors manpage: man dircolors