Choosing colours is influenced by many things. Certain colours elicit certain emotional responses, or they represent different things in different locations around the world. Colours also communicate visual depths, certai ncolour combinations will make objects appear near or far.

Colours however are not absolute to the human eye. For example yellow doesn’t always look yellow. The perception by the human eye of one specific colour changes depending on what colours surround it. These [1] colour illusions by eChalk will give you a visual explanation of what this means.