This color wheel show the meanings of colors in different countries. The designer chose a grey background so that the colors are easily distinguished between one another. I must say that I think the designer could have chosen a different color for the text on the right hand side because it is a little difficult to read plus the font is small. Black would have been a better choice. There is also the legend to consider. The four boxes of color (grey, yellow, silver, and gold) the yellow and gold look exactly the same. A different color should have been used to tell the two apart. As far as the labeling, a third-generation code is used. It uses a alphanumeric system. One must find the letter (which represents a country) and a number (which represents the meaning of that particular color in that particular country).