If you lack the color scheme gene and can’t open Photoshop and pick a handful of beautiful colors off the fly, here are some schemes and coordinators from around the web to get things rolling.
Behr.com - Play around with colors and palettes here. A similar technique I’ve seen Kevin use is to take a bunch of the paint samples and painting guides from Home Depot.
Popular Website Schemes - James Archer created a list of Color schemes based on popular web sites.
ColorSchemer - Some nice schemes to be found here.
Adam Poselli’s Color Schemes - A few color schemes along with the pictures used to create them.
COLOURlovers.com - Consistently updated color trends and pallets.
colr.org - Create schemes from either colors or images of your choice.
ColorBlender - Very nice tool to generate and play around with palettes.
DO IT YOURSELF
Wellstyled.com - Probably my favorite of the bunch.
Color Schemer Online v2 - Easy to use. Just enter RGB or HEX value and generate a scheme.
The Man In Blue - Enter a HEX value and see how the scheme looks on a test page.
The Color Coordinator - A little confusing at first. Decide for yourself it it helps out.