I personally would not add stone - there is not a natural place to add it and worse case it looks stuck on -

what color is the roof? it is hard to tell in the photo — it looks tan, if so I’d go for a low key neutral that jibes with the roof and helps the white windows blend in

No stone, the front of your house is all busy enough. I dont think, blue is the right color for your house either. Pick a light color from your roofing, which looks to be a light brownish color.

Sorry but no blue and no stone . That house needs a nice neutral that suits the style and thta lnadscaping needs a huge clean up and I always like a wlkway from the street to the front door . Not sure what the style for the garage looks like but if you are thinking MCM then for sure no blue . A bit more info and pics og the garage door and front door will help.

I like blue houses, you can get a warm blue that will go with the brown roof. I like lush landscaping and I certainly wouldn't advise anything based on a view in winter.

you could go dark with SW Urbane Bronze that would work with the roof,

Here is a link to a Houzzer painting with Benjamin Moore Wescott Navy with a tan roof.

https://www.houzz.com/discussions/6476965/navy-grey-exterior-paint-have-to-decide-today#n=37

Here is a photo of another house in Westcott Navy.

Urbane Bronze is a good idea.

I think those dark colors could work but it would be nice to at least see the dark n the same style house you have .I went to your idea books but no a help as to your style at all. This is a MCM house not exactly like yours but closer with the style of garage door and front door I think you like and also a nice dark gray.Note the landscaping too

I was looking for tan roofs, not the style, but yes, I noticed they are both barn roofs.

I'm showing your house in SW Needlepoint Navy with white trim, contemporary garage doors, large entrance pendant, new front door, new sconces at garage level, improved landscaping.

No Blue. Select earthtone colors for your home.

You need to fix the windows on the wall above the garage.

I love blue but for most exteriors it needs to be a shade with alot of grey in it. A light trim with navy looks crisp but it would accent the irregularity of your windows. Instead I would paint window trim and siding the same mid tone grey blue. Then use a contrasting shade of the same hue on the garage doors and front door. It would accent the doors and take attention away from thr the irregular windows. ( Any chance of replacing the ones above garage with matching larger windows? Even just replacing one with the same shape and size of the other would help. Add a faux window to make windows even squares??) the bright green railing would look better in a wood tone or deep navy if you use a blue siding. A more earthy or sage green would also look better than the current pastel shade.

The only place I might add stone to this design is for the railing post and it would need to match or coordinate with the light brick of your chimney.

Asymmetric windows and doors are fine....very MCM and is intentional in design.