Deep Red and Light Gray Dye Module
The Deep Red and Light Gray Dye Module can earned through the Reputation system, by reaching the Legend rank with Makeb. Once you have reached Legend, you can buy the schematic for this dye from the Makeb vendor for 100,000 Credits. The schematic, once learned, allows you to craft Deep Red and Light Gray Dye Modules with Artifice level 400. If you have not reached Legend with Makeb, or do not have the Artifice crew skill, you can buy this dye from the GTN from other players.
When you use the Deep Red and Light Gray Dye Module, it will dye the primary dye section of your armor Deep Red, and the secondary part of your armor Light Gray.
All dye modules are one-use, so once you've added a Deep Red and Light Gray Dye Module to your armor, you will not be able to remove it and reuse it later.