Hover over the wheel to view colors. Hover over the square to change saturation (left to right) and value (bottom to top) of the last hue. Click to choose a web-smart color. Click on a color box e.g. "Awesome color 1" to change an exact color.
Use the keyboard to rotate hue (if "enableKeyboardShortcuts" option is set to true):
j rotates slowly counterclockwise,
k rotates quickly clockwise, and
l rotates slowly clockwise.
Jump to a primary or secondary color (if "enableKeyboardShortcuts" option is set to true): red, green, blue, cyan, magenta, or yellow. The enter key will also confirm the current color and move to next color box.