Even if you're not fashion conscious, you probably avoid wearing colors that clash. We all use color to add spice to our Web pages. Without color, a page is bland and isn't very like to grab the average Web surfer.
Color is also important for emphasizing the most important parts of our page.
Remember that the purpose of Web design is to draw the visitor's eye to key page elements. Ideally your visitors should be able to take in the page at a glance, with their eyes locking on the most important things. Colored table cells, colored text, and colored graphics are all good ways to draw attention. But color can get you into trouble too. Too often you see poorly designed Web pages where badly chosen colors detract from the overall design.