I had the same issue with mine being orange in the cutoff, I'm assuming its a shield issue, if i mess with the bulbs and throw the hotspot way high it turns nice and blue/purple across the cutoff but the cutoff bows upwards, but when i have them where they are supposed to be i have blue around the step but orange around the rest of the cutoff. Honestly I've had crap luck with the xb bulbs and wish i wouldn't have recommended after i had issues, the the alignment on my set was piss poor and even the ones classy sent me to rma were bad. The bulb is seating correct and everything.