the key to using colour is to create a link between your spaces/rooms! Don't be afraid to hang a wild piece of art and then pick a colour from it and carry it through - here the yellow in the Vespa print is carried through to the flowers on the table and then into the yellow chair in the adjoining room - creating that all important link that helps make the space feel GREAT!
these spaces use colour through accessories, you will notice that in almost all cases, the bones are neutral and the colour is added through accessories( IE, cushions, side tables, towels, flowers, glasses, bowls etc). Try to limit your palette to three colours - Here, PINK, RED and YELLOW are the heroes. The spaces work because they all have a common theme and they can easily be changed when you tire of them in the future. I love working with neutral bases and injecting colour through art - don't be afraid to bang a nail into a wall - it's only plaster - you can patch it and repaint it if need be - go on take some inspiration from these pictures and inject some colour into your place.
all pictures are from the Melbourne home of Letitia and Michael Green via The Design Files