Out of all the colors, yellow is like the relative you love but can only appreciate in very small doses. While it can bring a pronounced cheerfulness (dare we say glow) to interior home decor, using it as a permanent aesthetic on the outside is a bold move, and one that shouldn't be taken lightly (or by the uninstructed).
This isn't to say that yellow garage doors can't or shouldn't be done. In fact, we think we've found some rather beautiful examples that give yellow every reason to stake its claim to a home's exterior in Sioux City or Yankton. Garage doors included. Take the picture at the top of this post. Using yellow as an accent--even a not-so-subtle one such as this--is a boldly brilliant move, particularly when paired with that golden tan. The Craftsman home looks all the happier for it.
Mid-century homes are all about bold color choices, as seen here in the home above. That yellow garage door could be any number of colors, even wood-tone, and yet we couldn't picture anything better to come home to for this particular exterior. Modern homes with bold garage doors like this are best served by uninterrupted blocks, which means forgoing hardware and other embellishments, to keep the door from looking overdone. Even windows on this door would have to be carefully chosen to avoid cluttering the minimalist aesthetic.
For the faint of heart, this ever so lovely buttercup yellow garage door is just enough to invite a little friendly cheer without bowling you over with an overdose of affection. Can't sell your partner in crime on the yellow idea? Pitch it as a very, very warm white. Win-win! :)