Some people can discern colors better than others. For example, painters who spend their lifetime looking and things and drawing them in color tend to detecs a lot more shades of colors than others.
How good are you?
Each round, a 5x5 table of tiles it displayed. All of the tiles are of the same color except one which is of a (slightly) different color. The difference becomes smaller and smaller every round. See how far you get.
Compare your results to those of your friends and family!
If you have great results (>200 score points) you either could become an artist or already are one :)