Color

Intensity- Saturation of a hue. Making a color brighter and more vibrant.

Ruiz, Alex. Ancient Ship Battle. 2012. DeviantArt. Web. 2 Nov. 2012.
<http://alexruizart.deviantart.com/gallery/?offset=24#/d4usx8m>.

As you can see above, the sails on the boats are highly saturated, drawing your eye to them instantly.

Warm Colors- The use of certain colors on the color wheel. Usually reds, yellows, and oranges.

Polidora, John. Hour of Twilight Patch 4.3. 2011. DeviantArt. Web. 2 Nov. 2012. <http://norsechowder.deviantart.com/gallery/#/d4hpynd>

In the image above, the use of reds, yellow, and oranges show a good example of warm colors.

Cool Colors- The use of certain colors on the color wheel. Usually blues, greens, and purples.

Splash. 2009. DeviantArt. Web. 2 Nov. 2012.
<http://cryslara.deviantart.com/art/Splash-145471325>.

As you can see above, the colors are all cool colors, apparent with the use of the blues.