iPhone Giveaway of the Day - Color Wheel

Digital color wheel - an indispensable tool for a graphic designer.
Abstract color wheel - specialized color choice for abstract painting.
Color combinations - many professional color palettes for digital design and abstract art.
Color picker - a tool for obtaining color from the camera
Color swatches - tool for choosing colors by seasons and mood.
Grayscale - handy tool for any painter.
Golden ratio - tool that makes it easy to find the golden section.