Another picture

Nice house.

With stone, you might consider painting the exterior green, perhaps with white or a different shade of green for the trim.

https://www.pinterest.com/pin/334955291012118776/

Adding: a color from the stone would work well.

Not a fan of using the "contrast" paint around a lighter color the way it's used in that third pic (comments). Would paint that entire exterior area the same color.

Agree with the above. Select a color from the stone to paint your siding and garage door. One of the medium to dark colors.

If you are willing to go dark, I think perhaps a bronze-y gray/brown for the main body. Kind of like your front storm door actually. Look carefully at the gray/brown stones and try to find a similar tone, and make sure it also looks good with the roof. Paint the front door a medium blue. This scheme is on a house down the street that has the golden stone (not exactly the same as yours, but the colors are similar) and it looks great.

Agree all one color. A dark taupe would be attractive.

Here is a suggestion for two colors dark and the same color a bit darker

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