Kuler. Color Hex - ColorHexa.com. The Shapes of CSS - StumbleUpon. Learn Development at Frontend Masters CSS is capable of making all sorts of shapes.
Squares and rectangles are easy, as they are the natural shapes of the web. Add a width and height and you have the exact size rectangle you need. Add border-radius and you can round that shape, and enough of it you can turn those rectangles into circles and ovals. We also get the ::before and ::after pseudo elements in CSS, which give us the potential of two more shapes we can add to the original element.