Tulips are found in a wide range of colors, but naturally occurring blue tulips are not known.
The genes of tulips don't code for the production of blue pigment, hence natural blue tulips don't exist.
Some tulips may appear blueish due to the interaction of pigments and the flower's cellular structure.
Despite horticulturists' attempts, breeding a truly blue tulip has remained a challenge.
Some blue tulips on the market are white tulips dyed blue after they are cut.
There are tulip varieties like 'Blue Parrot' and 'Blue Spectacle' that have a blueish or purplish tint, but they aren't truly blue.
Future genetic engineering may one day create a naturally blue tulip, but it hasn't happened yet.