Oh, and the TV room ended up a brick color, but the blue corner's not visible from there.

Go for it. It's just paint. If it looks like crap, you can always paint over it.

how about a dark chocolate?

or a dark green?

it's not crazy...i'd go darker than the mockup you did tho.

Well, the mockup comes from Benjamin Moore's color viewer program. The actual color shown there (symphony blue) (love the name) when painted on my wall looks almost black. So I'm looking at lighter colors than that one, and I've identified a few that look pretty good in my lighting:
w/flash kind of washing colors out
without flash, but a little too dark

Hmph. It's too hard to represent colors over the internet.

Watch out for blue. It can have a heavily depressing effect over time, and I say this from experience. Certain blues seem fine, of course.

I once lived in a red room (in the same house as the blue room), though, and I didn't seem to require sleep.

Colors have a very definite effect.

I heard great advice recently: get a great big piece of cardboard and paint it the color you have in mind and put it in place to get some idea of what you will be seeing.

Of course, you can never really tell until you try it out. Mr. taz once did something completely mad, and painted our living room (in a previous apartment) with a really dark-dark slate blue. It should have been horrible, but it was gorgeous. Several things helped make it gorgeous: the ceiling was white; the floor was wood, but not dark wood, and not really light wood; we had a nice big mirror over a white marble fireplace on one wall; we had large windows on another wall. Pix: 1 (that's me!), 2 (Not really that helpful, but I don't have any of the full room).

Another time (in a different apt.) we painted just one wall (also the computer area!) a great, rich terra cotta, with the other walls the palest possible pink, without being white... and it looked fantastic. But what we failed to take into account was that this happened to be the only wall in that room that was an "exposed wall" in terms of the exterior, and it happened to face the worse possible direction for sun, so that spot became miserably hot in the summer. Live and learn.

I once two-toned my bedroom, divided with a chairrail, a sandy beige on top and a hunter green on the bottom that matched the carpet.

I felt like I was on a liferaft floating helpless on a dark, depressing sea for weeks until I flipped out and repainted it. Then again, it was a depressing time to begin with.

Now I'm thinking seriously of one deep, dark red wall in the bedroom. Not the textured, hand-plastered (literally plastered with my hands instead of a knife!) wall with the light highlights dry-brushed on it, and not the two chairrail walls. The wall opposite the textured wall with the windows. Heh.

Shane, I bet your mood is also affected by the weather, right?

I grew up in Alaska, so winters and darkness never depress me. I don't think my mood has ever been noticeably affected by weather or color at all.

There's a room at my place with very little light coming in from outside. It was depressing as hell till I painted two walls dazzling white and the other two a lurid pink-orange-coral. No one believes it till they see it, but it's fantastic.

tangerine, that sounds delicious. (and kind of eponysterical)

It's called an accent wall. Nothing weird at all about it.