Try Benjamin Moore White Dove. It looks great on cabinets, trim, shelves, etc. and is the white I see most often recommended by designers on Houzz (Benjamin Moore Swiss Coffee and Cloud White are also popular whites for cabinets, etc.). I prefer a satin finish on trim and shelves, but others may feel differently.

BM White Dove is a personal favorite of mine, and I prefer satin or eggshell finish.

BM white dove is truly an all around excellent off white. For trim and bookshelves, semi gloss has the durability you'll need and the sheen looks great.
Also, with trim color you can select an off white the has the same tint as the walls for a softer look. Blueberry walls.... an off white with a whisper of blue, for example. I do not suggest this with red walls. If your walls are very light, plain out of the can white might be best to maximize the contrast.

It appears I should check out BM White Dove. Thank you everyone!