Ireland is a country, which is uniquely associated with a single green colour - green. And the visitor to Ireland is immediately struck by the myriad of greens in this soft and gentle land of hills and small valleys. But then one becomes aware of the blues: sky blue, a surprising azure in a place where the weather changes by the moment; lake blue, the deep sapphire of hundreds of little loughs scattered across the land; and sea blue, a vibrant metallic, sometimes calm, sometimes disquieting.