Becuase of my annoyance with the light green crosshair that disappears when you look up, i found a way to get the crosshair color when you use night vision. In your console type the two commands:
cl_crosshair_color 250
(Sets to light red)
cl_crosshair_translucent 0
(Makes it into a solid color)
This is now my permanent crosshair and i welcome anyone to feel free and try it out as well.
-If you want to get rid of it after using it, go to options and choose any of the default crosshairs.
This was originally posted on the deadman standing group site, but apparently no one looks at that so here it is too. =p