Best lens color for cycling in low light/fog?

[Flea]

Have used rose tint lenses in the past.  Good for very early rides before sunrise and in fog.  Increasingly difficult to find rose tint.  Is there another color lens that works well in those conditions?  

Any favorite wrap arounds to suggest? 

[REI-KevinL]

@Flea The rose, orange, or yellow lenses work well in low light situations for contrast and are still available from many manufacturers, especially those with interchangable lenses, such as the Smith Parallel, Smith Attack, Smith Trackstand, or Tifosi Crit.  Many of the multi-sport glasses with interchangable lenses from Smith, Native, Tifosi, and Oakley will also come with a clear lens as well.  Typically, I ride with Tifosi Podium XC Fototec Photochromatic which go from clear to dark grey tinted as the weather clears and sun (hopefully) comes out.