ah-64 apahe

Do you mean the whole nose piece or just the optics?  The whole nose piece is the same as the rest of the aircraft, Helo Drab Green.  The optics are anti-laser coated and should have a irridescent tint on one side and clear on the other.  The larger one on the starboard side is coated and the thin one on the port side is clear, like below.

 Hope that answers your question.

Sorry I missed that one and thanks for the save there, Gino!

The FLIR components (the window on the PNVS turret on top of the nose and the bigger window on the right side of the TADS bucket on the lower portion of the nose) are a dark gray metallic color.  Imagine dark, reflective sunglasses.  Each lens is outlined with orange-ish rubber caulking to secure it in place.  The left side lens on the TADS is simply a window that protects the day-side optics.

Jon