we have shale grey and surfmist painted on several adjoining different textured walls and find the contrast of colour and texture quite attractive with dark grey roof and surfmist fascia and eaves and have added extra colour with corten steel and terracotta

MB Design & Drafting - thank you. I agree and I'm glad to have someone confirm my thoughts.:)

oklouise - I'm still worried about them being too similar in shade. I originally wanted a terracotta colour but we also have a couple of rammed earth walls and I'm not sure that would work with the colour of them. I do like the sound of your house - corten steel and terracotta - beautiful!

You say the Colorbond and rendered wall sections ‘butt up’ to each other, but do they face the same direction? If they are at an angle to one another, then natural light will affect them differently and likely offer a contrast rather than appear the same colour. Does that make sense?

Kim, where do the rammed earth sections fit into the building, in relation to the Colorbond and rendered exterior walls? Can you post a pic of design?

I envy you your use of rammed earth...our house was originally designed with a rammed earth section, but finding a builder happy to contract out that portion was an insurmountable problem, so we went with recycled brick instead.

annb1997 The colorbond and rendered sections face the same direction. One of the rammed earth walls is at a right angle out from the colorbond section and forms a wall for the external entry porch and into the entry hall. We were lucky with our builder, he's often done rammed earth and has a regular guy he works with. Will see if I can post a pic.

What about Shale Grey and Windspray, OR Windspray and Surfmist combination. Will offer more contrast than Shale Grey and Surfmist, although there will be a subtle contrast between those two. Would be good if you could see a large scale example.

Yes, would love to see a picot rammed earth if possible. Cheers.