The Fast Color Corrector seems to be completely gone now. I only used it for one thing, skin tones.

That was in the Obsolete folder for several years ... for a reason. It was both old code and none of the colorists I work with trusted the math it used.

The Lumetri panel, Curves tab. You can simply grab the link of the Hue v Hue curve, slide the whole bar up or down.

Same thing as "spinning" the FCC.