Fu Xi is also known as the Red Emperor, while the name Huang Di means Yellow Emperor. The colour red is used as a metaphor for the phase fire and yellow stands for earth. Within the ancient Chinese philosophy fire stand for heaven, while yellow stands for earth. Those two metaphors are part of the so-called heaven – earth – man concept. A concept describing the creation of the Universe and all its components. Within this concept the term man the colour blue is given. Lán Dì is Chinese for Blue Emperor.