Blue

The color blue is used in World of Warcraft for items. Rare blue items are between and in quality. Blue may also refer to a color of a specific gem or socket on a piece of armor.

"Blue" is also slang for Blizzard or a Blizzard representative (especially the CMs on the forums).

Also, players' names appear in blue when they are not attackable by other players.

• Rares
• Blue post