Here’s a couple of hints. Use the eyedroppers next to each wheel.
White – pick something white… not blown out, but white.
Black – pick something black…
Mid – pick something neutral or gray
That will get you close.
Another trick but less effective
Zoom in and crop to some skin tone. Then move the center dot on the wheels until you get your skin tone to match the skin tone default on your scope… the circle scopey thingie.
But the first technique is probably the best. After you get it close, adjust.
Good luck,
CaptM