Colour in quantitative and qualitative display formats

Advantages of color in display formats are considered. Most people enjoy color because it is aesthetically appealing. However, questions arise regarding an improvement of an operator's performance because of color. In this case, the evidence is not clear, and it has been found that in many instances color does not improve operator efficiency. The present paper has the objective to discuss the use of color in both quantitative and qualitative display formats, to point out cases in which color can offer advantages, and to review some of the rules for color application which designers should use. Attention is given to quantitative and qualitative displays, approaches for using color, and color in quantitative and qualitative displays, approaches for using color, and color in quantitative and qualitative displays. Color in hybrid displays is also discussed, taking into account color as a classifier, color and information processing, color and continuous variables, and color related to hue, saturation, and brightness.