I think the color on your chairs or your seating area would look great on your front door. I don't know that I would go a lot darker but a taupe with a bit more depth on the main body of the house with white trim and the aforementioned door would look really good. You didn't say whether you were planning on changing the garage door. If you are and it's painted then I would keep it the same color as the body of the house so it isn't the focal point, which is what you want your front door to be. A frosted glass garage door or a MCM wood door would look good if that's in your budget. A horizontal cedar fence to replace the existing white one would be nice, especially if you went with a wooden garage door. If you're interested in seeing some virtual makeovers of your home check out my web site, Creative Visual Concepts. I can show you what your house could look like with various changes incorporated.

I love the colorful look in Capitola. I think what you like is a great combo but more navy than gray.

Replace black colonial shutters on large window above garage with white bahama shutters.

I really hate to say it, but, I would lighten up that dark paint, that you painted the house with, before doing doors, etc. Its just too gray and gloomy, for a beach setting. I agree with littlebug above, its perfect for a deep woods somewhere. Now as to the door. I notice you are asking about Valspar colors. Here is the name of one, that is very pretty aqua/teal color, its a very fresh and clear color. It is Valspar, and can be mixed in exterior or interior paint. For your door, I would use a semi gloss. The color name is Setting Sail V028-2. Its beautiful.