but then my husband made a point that since they are used for years, i might need a "good" paint.

Welcome to the group. You'll find a lot of help from good folks on this forum. They'll give you encouragement and comfort both.
I just used whatever paint is lying around and is still good. So my hives are yellow, orange, green, and brick red. The bees don't seem to mind.
Down south they tend to paint in light colors, but I couldn't bring myself to spend any more $$ on my setup.
kev