Moonlit Forest Green was our second choice, after white. My husband thinks white reflects the heat, which is a concern here in southern California, so we opted for white for that reason (and because it was the only remaining Clarity at the dealership we patronized).
So, yesterday, I figured out how to switch between HV and EV, while driving. Wisdom holds that EV is best for stop-and-go city driving, while HV is more efficient for higher highway speeds (and to preserve battery charge). When entering the freeway, I would press the HV button and the car would immediately display the HV icon and the ICE would kick in. The challenge was, when I would exit the freeway and press ECON, the icon for HV would remain displayed and I could still hear and feel the ICE. The blue EV line would not appear on the dash display. So, I would actually pull over, park, shut the car off, and re-start, to get it back into EV.
I scoured the owner's manual and forums for advice on how to switch from HV to EV but only found posts advising people to press ECON and patiently wait for the vehicle to make the switch. That didn't work. Purely by accident, I suddenly noticed yesterday that, when I pressed ECON, I could see the words "ECON" flash on the dash. Then I pressed "HV" and lo and behold, same thing. If I pressed HV once, it would activate. If I pressed it again, it would switch off. Bottom line: to switch from HV to EV while driving, first press the HV button once, quickly. This should immediately put the vehicle back in EV mode. Press ECON for good measure, if it's not already activated.