@bonemap said:
displaying RGB, Hue and potentially hex values as the counter cycles through 360° hue spectrum.
Using a different approach to @DusX, here's a user actor that a uses the Logical Calculator to shift the various components of the color (which is a 32-bit integer with A, R, G and B as 8-bit values) into the right place and then output them as integers that display as hex values. (I am not sure if you needed a string output or integer outputs.) Anyway, for what it's worth.
Best Wishes,
Mark