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.

Hello Kitty, one of Sanrio's most beloved icons, is receiving a brand-new anniversary watch that swaps out the typical pink color scheme for a cool, summery blue ... gets a new kimono plushie ...