I love this explanation for Lana!

I noticed that Lana also seems to have this association to Green K for Clark and Lois a red K connection. Coincidence? Yeah, probably. But still... Lana is like Green K to Clark (i.e. death) and Lois is like red K (i.e. passion).

Makes sense to me.

There's also a comparison, which I like EVEN better, that Lana is Green K (as above), therefore his weakness, and Lois is the Sun, therefore his strength. There are lots of visual examples of this, but the one that really comes to mind in at the end of Pandora when Clark returns to Watchtower, steps into the sun and replies to Ollie's question of why he's so happy: "The sun is shining, Lois is going to be alright."