You will get more responses if you post a picture.

What a lovely home! Check out pages 6-9 of this PDF for some good background then see if any lightbulbs go off. https://www.davinciroofscapes.com/wp-content/uploads/2018/11/color-schemes.pdf Take a drive around a the nicest neighborhood near you and look for a home of the same general color and style as yours, chances are they had help choosing and you may find something that resonates with you. Opinion: Since your home is large, you could benefit from some darker contrast. Brown would go great with your hand rails and really make your door pop. Maybe a couple blue planters at ground level on either side of the front stairs, to tie it together. in the same I can't tell what color your lightpost is, but that's easy to spray paint or powder coat to match. If you live in an area that gets any wind, GAF Timberline HDZ is an excellent product. As to color, different ones are available in different regions. I would say Shakewood would be warm and cozy or Barkwood would be dramatic and elegant. (Teak, mentioned above would be a bold and suitable choice. I get the sense that Driftwood would be a little chaotic for you; it's very nice but has diverse colorations and you seem to like a more tidy style.) You're welcome to try our GAF visualizer by loading your picture here and trying on different colors and patterns. http://www.legacyroofingnw.com/home-visualizer/ Regardless of what you choose, post the After picture so we can enjoy the finished project with you!

IMO the gable does not belong on that house so no matter what color it is it will still not belong BTW neither do the shutters belong If you must keep the gable then you need to make it much wider and shallower more like a MCM portico

have no idea what those roof colors look like, so post a pic. Nevermind, I did the work and looked them up. this is burnt sienna. It's very varigated and is going to compete w/your driveway pattern. Weathered wood on the left. works w/your house color, clashes w/your driveway. Because of your driveway, it would be best if you got one solid color roof tile. can you do a clay tile? Do you have plans on painting the stucco in the future? Much better colors to work w/your driveway. because of that driveway color, your stucco, or at the minimum your garage doors, should have a diff color. your driveway pavers are somewhat driving the color bus. you'll have to pick roof tiles that word w/those, as well as the stucco color. I actually like this combo. Timberline Wheat, with better colors for the house.