Here you can play the "Color Sorter Game".  Try to put the cans from the shelf in ascending color order on the table. The start and end colours are already given.

There are tests especially designed to discover color blindness. The Color Sorter is derived from the Farnworth test, which is used for all kinds of purposes; mainly to test colour distinguishing features and to test eye deviations which may be caused by certain eye diseases.

If you have problems with placing the cans within the game in order, ask someone else to watch you. The settings of the color monitor can influence the color of the cans. If you find you are always making the same mistakes with a certain color, it may be caused by color blindness.

It is possible that the colors on your screen do not accurately reflect the can color. This may be caused by the color settings of your computer. It is advisable to set your screen to a minimal 256 colors.