Hi h2soy, wagner,
Just checked the FREQUENTLY ASKED QUESTIONS section written by Knytiri and in the section referring to what comes with each saber (The covertech,rechargargable battery etc), he describes colour options on a HERO tier. If you wanted just a single colour in this case Blood Orange you need to order a 6W RED led and a 6W AMBER led equals a 12W BLOOD ORANGE. Don't know if this would work on any other tier but just maybe!
For Tyeth
EDIT: Here's the quote guys
These come with a 12W LED, with a few options: Hero sabers offer color-changing abilities. You can, if you do not want color changing, request a single, 12W LED color to be solid. The standard setup for a Hero is 2 6W colors mixed for 1 12W. IE: Red 6W and Amber 6W for a 12W Blood Orange.