You can get any colour paint you like in any strength - 1/4, 1/2, 3/4 or full - its only a colour, so they will mix it to your request. Have you made yourselves a colour board? if not, you will need to get all your selection colours together and then go to bunnings or a paint shop and get some sample pots of the colours you are debating. (yes it will cost to get sample pots, but seriously you need to do it - and get the varying strengths in the same colour as well). If you are worried about the render colour marking, go the 1/2 strength on the render and 1/4 on the mouldings. Your Wow factor will come with your varying textures - brickwork/render and trims/timber doors, and the wrought iron. I'm guessing you have exterior lighting? some beautiful exterior lights will be the icing on the cake.

Since you are going to clad the posts , paint each post different colour . That would be the best way to see it at different times of the day and choose the one you like. You can even repaint it again and again until you get it right.

I love that you have gone for a zinc roof on shed and house. With zinc there is no issues with fading and mould and the matching roofs are enough to match your house and shed. Also it is timeless and leaves more options if you change your mind down the track about wall colour. Like you I am also on a country block and had the same dillema when building my home a few years back. My shed is Jasper with zinc roof and guttering. I debated for ages about painting my house shades to match jasper. Someone said to me.....don't make your house an extension of your shed!! So glad I listened. I painted our house a green similar to coloubond mangrove and went for zinc roof and guttering. Everyone went berserk about the zinc roof and guttering (and the green) when I suggested it, but it looks wonderful!.... and very quality. The brown undertones in the green and jasper brown compliment well. The house also has zinc window frames. You want your house colours to look nice next to shed and also you want the house to catch your eye sooner, but not look too matchy. My suggestion is that you go for zinc guttering on the house to match roof, and introduce a different colour to your house that has grey undertones to look nice next to the shed. Hope this helps. I'm still loving my outside colour choices. (The inside ones are a different story and Im ready to get the beushes and rollers out again.) Good luck!

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