There is great importance to building your own "branding"... in other words, using a color and style that is consistant with your current print marketing pieces and company identity.
It is also important to remember though, that web colors are different from print colors. While the reults can be similar, they will never truly be the same, since print inks consist of combining cyan, magenta,yellow and black PIGMENTS, whereas web colors are ceated from combining red, green and blue LIGHT, much like on a projection television screen.
There is a list of web-safe colors that produce a consistant and pleasing color. The list consists of 216 colors, so there are many to choose from. Other colors can also be created using this system of combining RGB values, too.
A designer well-versed in html and color-theory can help you decide on the best colors for your site, too.
Rich Dusky