This was done for an eco-friendly cleaning business in my local area. They requested cupped hands holding a house. There was no colour scheme in mind so I was free to use what I thought looked was appropriate. I used blue as the house to represent the cleanliness you get after the house has been cleaned by their dedicated workers. Then I placed a green roof over the house itself, as a representation of the eco-friendly products they use and the show the house is naturally shielded from contaminants I am really proud of this logo and they loved it!