Working with what stays
Account for the broad roof surface
The cream Dutch Colonial example shows a large dark lower roof band beneath its upper windows. A siding swatch alone will not show that relationship. Compare the facade and roof together before changing shutter colors.
Keep the portico from becoming a third palette
Use a trim color that relates to the window casings, then compare shutters and the door separately. The small entry roof and columns can connect the scheme without needing several additional colors.
