i have "yellow" hids in my fogs. There is a lot of info i posted on this forum about it. I would encourage you to use the search function.
But since you are new i wont give you too hard of a time.
The way the CRZ housing is designed you wont get very much yellow from 3000K hid's. The lights will look white like the low beams, and the color of the light is slightly yellow.
If you want yellow light, either look into yellow halogen bulbs, or 3000K hid's with a yellow foglight film.
This is just 3000K HIDs
This is 3000K HID's + Graffixpressions yellow film