A Class of 1926 graduate wrote letters in 1964 describing the color as royal blue, while acknowledging dissent among faculty and staff as some believed the blue to be closer to Yale’s grayish navy.

Shades of Blue and Their Specific Meanings. Blue is one of the primary colors and belongs to the cool color spectrum, alongside sky blue, turquoise, indigo, and violet.

2. Purity. Blue is the color of the sky, which is open, crisp and clean. Blue is also the color of water, which represents the ability to wash away "sins," uncleanliness, or the past, in general.

The background color is inspired by International Klein Blue, a hue that the artist Yves Klein first mixed in the 1950s, using it to make an array of monochromatic paintings until his death in 1962.

Researchers recreated ancient Egyptian blue pigment and uncovered insights into its production, variability, and future tech ...