Thats how they all are. right when you turn it on u get this deep blue/purple look but after it heats up the color is like a light purple. not as dark as bmw's and lexus though.

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2001 Acura TL
WW Flush Mount Spoiler
WW Body Kit
20% Mirror tint
18" Raptor Racing Rims (chrome)
Inspire Tails

~On OrDeR, BuT WaiTiNg...~
Comptech Springs

 

This is normal. All TLs 99-02 have lens type HID headlights while BMWs use projector headlights (glass domed) which produces that purple color at certain angles. The bulbs for HID are the same.

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Just got my 2002 TL. Noticed that the 2001 and under have a brighter lighting system. Mine is very bright (purplish) when you first turn it on, then it sort of dims down. Still white but not the purplish Bimmer look.