Brilliant Chromatic Scale

Brillant Chromatic Scales are scales from Nefarius' chromatic dragonflight.

As a leatherworking ingredient

 * Chromatic Cloak

Objective of

 * Breastplate of the Chromatic Flight (quest)
 * Legplates of the Chromatic Defier (quest)

Trivia
It is possible the name is a pun on the musical chromatic scale.