Just as a tip, those dark colours in your light brick arent' grey, they are a deep purple/brown also known as Burnt Umber. The midtone colour in that brick is also a purple brown in a natural mineral, in artists land that colour is called Indian Red, other similar hues are perylene maroon and piemontite. I'm an artist so very used to seeing different colours and their undertones. Colours that will go with that will be blacks that are actually red or purple based. So NOT monument which is a blue based charcoal. Blacks come in many different tones and it's important to match the undertone to your brick for colour harmony. Blacks which are complementary or blue based will stand out more but may not go as well. Which is why the grey blind seems uninspiring, it's a blue based grey. I'll name some colours in the Taubmans brand. I didn't pick Dulux because it has an abyssmal colour selection atm. Phantom Myst and Fable would both be good blacks to use on your home. Ruby Rose and Redwood and Russet stone would all go with the brick colours. Unless you train your eye to see hues and undertones it's very difficult to spot them which is why a colour consultants have a job. If you're interested learning colour mixing is fascinating there are even hues like red-blues which sounds paradoxical but ultramarine is actually a red based blue' A hack for creating colour palettes super easy. If you have Photoshop you can show it a photo and it will automatically create a perfectly co-ordinated colour palette for you of 6 or so colours which are exact matches to the colours in the photos. Any photo at all, and it will spit out pantone colour codes for you that you can take to paint shop and have them mix up. It picks up some dark, mid and light tones and you can have it create monochromatic, complementary, split coplementary etc palettes that work beautifully.

Whilst dark is trendy now , and to a certain degree is taking over from grey , it is hot in summer , but also i think you risk the house looking too 'negative' -- plus in 5 years when you are sick of it , its harder to paint over . The green and beige were 80's , and does look dated , but the green in particular does suit the site . One option would be quite a crisp white , and slightly greener green trim -- more modern and cleaner looking , but its been done lots too . Something a bit more radical would be a greeny grey ( sort of a greenish tinged muddy khaki ) with white trim -- that satisfies the darker look , the green , the grey , and the cleaner white for contrast -- hard to get it exaactly right , so probably a few test pots needed . The other 'lazy' option would be to keep the beige , but do all the trim in a bright sunshine yellow -- it wouldn't be too overpowering IMO with only the trim in yellow , the beige would compliment it but also tone thge yellow back , but it would modern everything too . Confused you more ?

Hard to see but the roofing looks like a faded mission brown concrete tile.

Firstly , you want something that you like , that suits the area and the climate and the vibe , so some of our suggestions are just guesses , modulated by our preferences , so take this more as a discussion , not a set-in-stone outline . Normally my ears prick up when I hear someone say they don't mind something a bit out-there , but I don't think this place wants to be or needs to be -- I'd embrace the era , and go with a 50's soft blue or apricot or mint green . The base boards then could be a more mainstream blue or orange or forest green -- not super bright shades of those , but about 3 times the brightness of the main tone , not 6 or 8 times , if that makes sense . They'd all look good with the white trim , and I personally would have gone for a stronger roof colour , but its pretty neutral so its easy to work with , and won't offend anyone haha . And the fence -- almost certainly a charcoal black stained wooden fence . Within 6 months , as your house starts looking attached to the site , so will the fence fade and weather and not look 'newly done' .