Skin Tone RGB Numbers?

Before the game brought in sliders for the different skin tones, you just had to select what was there and I was wondering, is there a way to determine the RGB code for the colours?

For example, at the bottom of the selection, you had from the left side:

- Green
- Red
- Silver
- Off white

What would be the RGB number for the silver skin tone? I'm trying to create a character in the new "Saints Row" game with that exact colour but not sure what RGB it is.