You could list 20 different free color scheming websites, and none come close to what i4Colour does. Does the website have drag & drop to your html editing application? No. Does the website allow you to preview what the color will look like on your text and backgrounds? No. It's one thing to get a mess of colors on a page, it's another to see how the letterforms look in color and against a color background (even using your own template). Do the free websites allow you to create blends? Sample colors from any color on your computer? Copy out the CSS? Save your colors for later reference? lock colors? Fine tune the brightness/saturation with visual feedback? All this can be done with i4Colour, which is by far the best color scheme tool available for OS X now...standalone or online.

If you design websites for a living, or even as a hobby, i4Colour takes the chore and trial and error out of color section.