Water is colorless, so why are most pools colored blue?
Maybe it's tradition; people often associate the color blue with water, particularly the ocean. The ocean, however, merely reflects the sky, which in turn, gets its blue color through a phenomenon known as the Rayleigh scattering. On the other hand, there are those who think of blue as the color of cleanliness, in contrast to dirty and grimy hues.
While blue is the most popular pool color, it is not your only choice. In fact, several pools around the world have already broken away from the “blue” tradition. The Library Koh Samui's Red Pool in Thailand is one of the most popular examples of a non-blue pool. It gets its red color from the strategic installation of red, yellow, and orange tiles.
You can choose any color you see fit, but experts say green is ill-advised, as it is the color of algae. Choosing green may camouflage algae, preventing early detection of the harmful growth in your pool. Black pools, on the other hand, are a great way to save on heating costs because the color absorbs light and heat better than others.
So feel free to break with tradition, and have a pool that’s truly and uniquely, your own.