Your link doesn't work, so I have no idea what the house looks like.
You have primed, but not painted? That may spell trouble unless you
re-prepare it when you paint. Check with a good paint dealer.
As for color, it will never look the way you think it will. As others
have said, try samples. A good graphics program, like Paintshop Pro, is
fun for fiddling with color schemes. If you have real, natural stone on
the house, a muted beige or taupe may set it off; muted blue or green in
a deeper shade for accent. A lot can change the appearance of your
final choice, such as reflected strong sunlight (as from a sandy beach)
or color reflection from landscape. A lot of shade will dim the hue, and
strong sun will lighten and diminish it, as well. I'd buy a quart of
cheap latex paint and try colors on a sheet of plywood. You can
purchase inexpensive acrylic artist colors to mix to the color you want
to try. When the sample looks right, take it to a paint dealer (not a
box store) to match.
A big tube of burnt umber, along with primaries (blue, red, yellow),
black and a nice green will get you lots of interesting neutrals (yes,
they all have colors in them).