There's this website I found call Houzz. It has some really great content on there. I know a picture can speak 100 words, and I can never find the right picture when I need to. I'm going to try to build some pages here of good ideas. Here's one of the simplest - Paint! These examples I thought were good examples of how the best color schemes work TOGETHER. Don't pick out your paint colors one at a time! They are a set of complementary and accent colors that will give your spaces the feel that will help them sell (or help you feel at home.).
Note this works like a slideshow!! If you look up above you'll see small circles and arrows at the bottom of the photo. Clicking on those will move the slideshow along. I've organized it to show a picture of the palette in use next to the palette itself. (Each little circle represents a slide). Click and see!