This innovative pen design by Jin Sun Park allows you to follow what kind of hue and colors you wanted exactly as that. A color sensor on the top of the pen registers the color of the object you select, which in turn is displayed digitally on the back of the device for verification. Red, green and blue inks are then mixed – much like in a traditional printer – to create your desired color Of course, such an invention has its limitations: space for ink and batteries are challenges to be sure, but presumably you would only use this periodically and would also transfer the color data in some cases directly to another electronic advice, thus saving ink. While only in pre- production and sure to be extremely expensive initially one could easily see this become a household gadget and essential tool for every artist and designer for both real-life and web applications.
This is a breakthrough in a very colourful world of designing.. It's like a printer On hand in an instant :).