
Inspired by the beautiful color of the Pacific Ocean that he looked upon each day, Yee came up with the tropical wonder that is still being served over sixty years later (although recipes have been tweaked and changed over the years).
It’s said that Yee would hold up each drink he made to make sure the color looked just like the ocean behind. This is why the drink is more of a sea green turquoise color rather than the blue that you might have expected.
Yee intended the Blue Hawaii to be a built in the glass, not shaken and certainly not blended. It was designed this way for two reasons - speed and taste:
https://thelosttikilounge.com/cocktails/blue-hawaiian-guide/