Ah, with a username of orangesummertree, I can see why! Sorry, I don't know the color off-hand but am working to find the colors on many of our projects (so stay tuned). You'll see that our colors aren't particularly true, here's a different image of the same door:

And colors look so different depending on what is next to them and the time of day. I suggest you get several samples and check them out at your location before making a final decision.
:) Rhoda

What is the exterior siding material?

The siding material is wood. There are a couple of different styles/sizes that Eichler used. There is a company now that replicates it: http://eichlersiding.com/