There's primary colours (red, yellow and blue) and then there's secondary colours (made up of a mixture of these). Don't be fooled into thinking they are second best! Team them up with a primary colour and you have a balance of warm and cool or a 'Split complimentary' colour scheme.
This moodboard uses Blue (primary colour) with Orange (Red + Yellow) and Green (Blue + Yellow). How does it make you feel? Peachy Green?
Below is a sample of other inspirational images using similar colours.