Could you see how you feel in the nude bra? I did something similar in my new-to-me (from last year’s clothes swap) cobalt top, I put a cobalt bra under it and you could only see the V part of the bra before it was the pin tucked folded parts of the top. It did feel cooler than having to wear a cami.
Otherwise I might be purchasing a white bra or bralette?
I think it’s partly that I don’t like the look of the contrasting colour underneath, would prefer the same or nude colour.