Do you talk of urban EDC or outdoor EDC?

I carry a white light all the time.

For colours, i'd go with red for outdoors (so i can save my night vision and batteries)

For urban, i'd go with blue. it is a lot brighter than the red, i generally won't need a reason to maintain my night vision, and i also just like the colour <img src="images/graemlins/smirk.gif" alt="" />