If you're OK with third-party code, the community Hue B Smart integration is the only thing I'm aware of at the moment that allows easy access to Hue scenes. [EDIT: Since this time, I've actually written my own: CoCoHue.] That being said, I'm pretty sure a Hubitat scene should capture color/CT settings from Hue Bridge bulbs, too, but I've only used it with directly-paired lights, so I can't say for sure. (Do you observe that it actually fails to capture these values? Sometimes I've needed to activate the scene twice for captured states to actually apply correctly, but that's another issue.)
I'm working on something to supplement the native Hue Bridge integration that will allow scene activation from Hubitat. I was only planning on making this available for use within a button controller-type app I'm working on, but I could expand the scope to create full "Hue scene activator" buttons Hubitat if there was interest. (And I was only planning on doing scenes since I prefer built-in apps whenever possible, and the Hue Bridge one is otherwise great.) In the meantime, if you're familiar with the Hue API, you could use ogiewon's HTTP Momentary Switch driver driver to send the scene activation command to the Hue Bridge over its API (not for the faint of heart).
