Of all the colors, blue is the most liked by both men and women. It’s no surprise, then, that many artists—Louise Bourgeois, Yves Klein, and Wassily Kandinsky among them—have expressed preference for it. According to psychologists, the popularity of the hue may take root in our evolutionary development. In the hunting-and-gathering days, those drawn to positive things—like, say, clear skies and clean water—were more likely to survive, and, over time, this preference for the color blue may have become hard-wired.
Yet, scientifically speaking, the sky and the oceans aren’t really blue—or at least not in the same way the soil is brown or leaves are green. This posed a big problem for most of art history. You can’t take the blue of the sky, grind it up with a mortar and pestle, then throw it on a canvas. Unlike certain reds, browns, and yellows, blue pigment isn’t quite as easily made.
More on this Artsy article HERE