House color  

No offense
But Mies's didnt need color. And what exactly would you paint on the Farnsworth house anyway? The windows? All white gets my vote again! 😀 Think about how refreshing the white house will be in the hot Texan sun!

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I'd go for mostly white with a
mural somewhere, ask an artist
what they'd do with it or
design and paint your own maybe?
This is the Rose Seidler house in Sydney,
The mural is a bit loud but if you
follow the link you'll see some good colouring.
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http://fabprefab.com/othermod/roseseidlerhouse/

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Also too, white is rarely pure white, I undercoated some old workshop walls in pure flat white a while ago and it was really really awful on the eyes, like old ladies using laundry blue you have to trick the eye, the tiniest amount of pigment can make a huge difference....oops Olive mentioned this.
You could read up about what Le Corb did at the Pessac development, the colour he used had an architectural purpose which might be more effective than just breaking up the surface for the sake of it.

Purple!
I can't believe no one else has suggested it yet!
More specifically, eggplant.

Can't go wrong with white
Of course I am biased. I live in an all white house. But then the architect specified that it be white painted brick inside and out.
I think your white home could be most striking if everyone else is using colors. I'm curious too what is the purpose of the wood siding, or why is it just in certain areas? It does not delineate specific forms or sections of the home as far as I can tell. What if you really pushed the all-white scheme and whitewashed (leaving the grain visible) or even painted the wood portion?
Regardless, whatever you decide you can always change it later if you don't like it. It's only paint after all. Except the wood that is, painting that is going to be harder to undo.

For those of you who were ask...
For those of you who were asking...
There will be a simple, shallow overhang that frames the wood section on the front corner ... around each side and the top. This section is also where a small ledge will be.
Although the design has changed a bit, here is an early drawing illustrating this ...

Much nicer
The overhang is an excellent addition. Without it, the windows and door feel like they're crowding the upper level.
So getting back to color... how about this grey/green in the latest image? It's actually a really nice cool compliment to the warm wood tones.

Agree...this new revelation...
Agree...this new revelation is so much more dynamic and attractive than your first photo provided.
Gots my endorsement.

So glad. Maybe I made sense...
So glad. Maybe I made sense of the structure for you.
I am still thinking the first option. I like how it helps made all these different geometric parts ... the top, the bottom, the wood sections, the windows. I think it helps bring some interest..... but I do loooove all white too. I'm not throwing it out. But it's second.
The first option, I think, is already striking in comparison to the other houses. SO far they all have a color .... blue, yellow, green. Even the white/light gray will be a clean break...