Maybe a Celeste, Black Mission, Marseilles VS... Here is a link that might be useful: Encanto Farms

My guess is still with Montezuma. Sun effects can account for the differences in your two photos. My Tropicana is way to orange for that - the petals don't ruffle, either. Fragrant Cloud ruffles a bit, but doesn't have that petal form. It also reflexes quite a bit with the lower petals and I don't see any of that tendency in the pic.

NB would be close but you might want confirm that it can achieve a light blue or a pink in your soil. I have seen NB in MA/NH whose shade of blue I branded as a medium blue instead. A lighter blue shrub that I saw in the northeast was Générale Vicomtesse de Vibraye. See a few pics of blue blooms in page 2 of this link: http://www.finegardening.com/big-flowers-bigleaf-hydrangeas Are you planning to plant it in a pot or in the ground? A good local plant nursery that sells hydrangeas maybe/might be able to tell you what color to expect in your garden. A soil pH kit might also give you a guess too.

Try looking at this link with pictures too: https://plantaddicts.com/types-of-hydrangeas