I’m far more of a programmer than a designer. I can deal with hex and RGB color values all day and plug them into my CSS like a champ. I can poke around in Photoshop, take some color samples, tweak them in the palette tool, and come up with pretty colors. But how do I come up with real, usable color schemes? Thankfully, for both the color hack like me and the graphic artist with a more refined eye, we have a large array of color resources available online: tools to help create palettes from scratch or based on an...