Wind

don't nessesarely visualize wind as a color.But endeavor to portray the effect it has on the subject.The movement of trees or bending of the grassin a particular direction.The wispyness of a cloud or the spray from a wave as it meets a beach blown by the wind.When doing people I may try to project the impact of wind on clothing or the unpredictible movement of the subjects hair or the subject trying to hold a hat on against the winds sometimes kaotic motion.I believe wind can be beautifully represented by it's result as opposed to a color.