To do Alt + H + F + C on Mac in PowerPoint, download and install Accelerator Keys, then press Option, followed by H, F, then C.
Command: Font Color
This is how to do Alt + H + F + C on Mac in PowerPoint with Accelerator Keys, the native ribbon and alt key shortcut solution for Mac users who get more done with PowerPoint.
Alt + H + F + C opens the Font Color menu, displaying theme colors, standard colors, and options to access more colors or use the eyedropper. Select a color to change the text color of your selection.