Skin
Brightness usually between 50% and 70%
Brightness
In video, generally, nothing touching 0%, only lights directly into the camera for example touching 100%. Still everything close to 0% and 100%.
Saturation
If there’s a lot of color specks from noise, those can just be what’s going outside of the color scope range.
Color balance
Use scopes to prevent eyes getting used to the wrong color
Correct a video as a whole. Apply styles on a second pass (best is on a separate adjustment layer).