Can't go wrong with Cabots

grey and white always look good but Google "choosing colour schemes" for all the different paint companies services for matching colour schemes

Hello, this is exactly why window treatment specialists such as ourselves exist! There are a lot of options depending on your preference for internal look. Some simple ideas such a dual roller blinds have already been referenced. You’ll have to meet with a consultant to see how two fabrics pair, especially if you’re considering one being light filtering. You can also mix treatments such as a dark roller blind recess fit to the window, and a light roman blind fit over the architrave which will give you a soft fabric finish. Alternatively white plantation shutters contrasting an exterior black window frame can actually look really stunning. It does depend on the style of the black framing you use. Feel free to post a picture of your style of window frame used and I can try to help you online Shannon -RPShutters www.riverinaplantationshutters.com.au

Love your thinking, could look moody and gorgeous, any planting will look stunning against those colours.