Cobalt
Blue Raspberry, originally a reddish-pink raspberry, but later then their color turned blue from "Cobalt extracts".
History
Cobalt has its origins in the Baltic Sea. Its molecules tend to form covalent bonds with one another. A guy from Norway saw this and thought, "Hey! Covalent bonding in the Baltic Sea!" This is where we get the name cobalt.
Then, everything changed when the kobolds attacked. One aqueous cobalt solution in a Hamburg laboratory was replaced with milk because the spirits were simply interested in learning chem for themselves.