What’s your favorite obscure Porsche paint color?

I remember seeing a brand new 928 Individual Order that was (I assume) Radium Green with a (Porsche equivalent of) Technoviolet leather interior.

It was... something.  "Individual" is putting it mildly.

Interested.

Aetna Blue

You can look through 611 different Porsche colors at Rennbow. It's a database of colors maintained by the PCA.

I don't know how rare it is (couldn't be too many) since I don't keep up with Porsches too closely but the viola metallic for 964s is awesome. One of those that really changes in the light. 

Oslo Blue

It's a modern color.  Not sure how "rare" it is, but it can't be very common because it seems like 80% of the Macan's I see on the road are black or silver.  Wife and I have been kicking around the idea of getting a Macan in the next year or so and we both like the mahogany metallic color.  Wife didn't at first until we saw one in person and it has a very slight purple tinge to it which changed her mind. 

-Rob

We repainted a 911S in its original Ice green a while back and I loved it.  Very similar to VW's Inari Silver from the same era

I'm not sure about what qualifies as obscure but since most cars now are black, white, silver or some shade of gray I'm going to say almost any 'color' is rare.  Porsche makes a bunch of blues (some pretty similar) and I think I'll pick Miami Blue as my favorite:

Really just made this item so I tell everyone I recently discovered Moonstone. It's my favorite Porsche color to date–but also super rare:

Zambezi Green.