Archaeologists have long used the Munsell Soil-Color Charts for describing the color of stratigraphic contexts and unglazed pottery. The range of colors in these charts has limited the wider ...

The test is a color spectrum consisting of 39 unique colors. The number of hues a person can differentiate on the chart points to the amount of color receptors, or cones, that person has.

advertisement 12-07-2015 IMAGE OF THE DAY This Lego Color Chart Contains Every Color Lego That Exists There are over 180 distinct colors in the Lego rainbow and they’re all here.