Item rarity

In Guild Wars, there are five levels of item rarity. They are, in ascending rarity:
 * 1) White: Common items.
 * 2) Light Blue: Less common items.
 * 3) Purple: Uncommon items.
 * 4) Gold: Rare items.
 * 5) Green: Unique items. Items that are dropped by a boss (only found in Sorrow's Furnace) and are unique to that boss.

On weapons, Focus Items and shields the chance for a magical modifier or weapon upgrade increases with rarity White items will have no upgrades or modifiers, Blue items may have a modifier or upgrade, and Purple or Gold items have at least one modifier or upgrade.

On Salvage items the chance for a minor, major or superior Rune increases with rarity. White salvage items have no runes applied; Blue salvage items indicate that a Minor rune is applied, Purple salvage items indicate either a Minor or Major rune, and a Gold salvage items indicate a Superior rune.