The standard amber turn signal bulbs reflect a little bit too much orange color to the inside of the headlights so they make the headlight look orange. I replaced mine with silver-colored bulbs. These are readily available in automotive parts stores and can be found on the internet as well. The bulbs have a silver coating on the outside but will give off a normal orange color when lit. These are the Philips Silver Vision I used.

silvervision.pack

Amber and Silver bulbs

P1020634

Before

P1020618

After

P1020644