Blue colors are hard to come by as they are often expensive to produce or they fade over time.
Scientists discovered a whole new blue while mixing manganese oxide, which is black, with other chemicals and heating them to high temperatures. After cooling, the manganese ions absorbed red and green wavelengths of light and reflected only blue.


Comments
Somehow made me remember that song.
Yeh, blue’s always been a bit of a problem. I know in the new OLED displays blue has a much shorter life.