Color Picker is intended for those who want to learn to mix colors with individual channels (RGBA). There are four sliders in this program that stand for red, green, blue and alpha channel. With these sliders you can adjust a randomly generated color and with the "Compare" button you can check how well you have chosen your color for the randomly generated color. With alpha channel you can make the colors darker or lighter. If you guessed the colors well, you will get a message:
(1) Exactly! If the selected color is the same.
(2) Perfect! When the selected color is almost the same. Difference by 2 units.
(3) Very good! If the color was chosen pretty well. Difference by 4 units.
(4) Good! If the colors have been adjusted well. Difference by 8 units.