In fashion, the word professional has come to mean neutral, balanced grey colour. It's a cool, conservative colour that seldom evokes strong emotion and acts as a shield from an outside influence. The plain and practical grey is associated with independence, self-reliance and self-control. Warm Greys, however, are preferred background for brilliant hues such as red, teal or orange. Professional is a mood to choose, if you want to send a sober message.