I definitely agree with Tribbletrouble. The current trend of very dark roofs is perplexing in a hot country such as Australia. I suspect this is a trend that will be short lived because the colour of your roof is important regarding energy efficiency. A dark colour such as Monument has a high Solar Absorptance (0.73). In the general range of roofing colours you can get much better colours, such as Surfmist or Classic Cream which are SA 0.32. You can usually find the SA rating on the brochures. The same argument goes for colours of large expanses of walls and paving such as the driveway, with lighter colours being a better choice if you live somewhere where summers are hot. Of course if you live somewhere cold, darker colours would be a better choice but for most (if not all) of Australia, lighter colours make much more sense (and good cents).

Terracotta roof tiles. Then you could either go with steel greys and blues, varying shades and tones of terracotta or a combination of both. Have included some Dulux colours showing how versatile terracotta can be to perhaps give you some inspiration...

To Modernise this without rendering or retiling the roof I would probably recommend to go darker with the trims. My top pick as a colour consultant would be Dulux's Domino for the trim. It will be a little bolder and create a more modern contemporary feel. You can see it pictured below as the trim. Obviously this house has painted their bricks in the shade "teahouse" however it will still look much better on your 1980s "peru" colour bricks! Don't hesitate to contact me if you need any more help colour wise!

Do you have any photos of your area