It is actually the charcoal grenadine. The direct sunlight makes it look a lot lighter and those colors must be a prism affect. Very cool. Or it could be the remanants of my Irish Car-Bomb that was (successfully?) cleaned off from the other week. Or, it is the reflection of the eyes of my beautiful girlfriend behind the iphone.
Did you clean the tie off yourself, or take it to Tiecrafters (or somewhere else)? I actually really would like to know the details of how you cleaned it, for future reference.
(By future reference I of course mean future car bombs.)