Having  the problem of ‘color blind’ one would not be in position to experience the  depth of field/ dimension. Ophthalmologist may conduct one of the above tests  (plate4) to determine the type of color-blind.  
                       However, color has helped us in creating  dimensions due to their intensity, contrast and color values. Combination of  color may create objects coming forward or receding backward. In art and design  artists have successfully applied the phenomenon of our perceptive deficiency. 
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