I can't brag about being very colorful interior wise, but on the other hand, I have a hard time sticking to just a couple of colors. I like earthy tones as base colors, light, dark browns and whites, and then adding some color to that. Lately I have had a very soft spot for purple. Actually so much that, when we moved into our new house last summer, I painted the raw concrete wall in our living/library room light purple. I kept one wall and put up a dark purple/brown wallpaper to create contrasts.
The rest of the house has more neutral colors and I occasionally spice it up with colorful pillows and accessories. I do have a fun little colorful project coming up though....our tiny guest bathroom needs remodeling and I'm thinking cute blue and raw concrete walls:)
Have a look at Fabriken
for more favorite colors. /Sussi