I don’t know if you’re asking about Mochi’s or Finn’s, so I’ll list both (ฅ'ω'ฅ) I’m listing their hex codes below <3
Mochi’s Skin Base - F635DC
Mochi’s Skin Shade - EEC0BD
Finn’s Skin Base - 35C7A9
Finn’s Skin Shade - CEAB8D
If you don’t have the hex code option, then I guess try to color match (┳◇┳) Those skin tones are from the custom color option! I hope it helps a bit <3