Colors are an effective medium for communicating meaning. Some have certain implicit psychological associations. Red, for example, is often associated with power, love, and anger. Blue might convey coldness, calm, or logic, depending on the context. Different shades of a single primary color can convey vastly different meanings and emotions. Two or more colors together can have a profound effect on one another. They can be complimentary, or work in juxtaposition. In data visualization, color…