Google's logo looks like something you get when you let people who don't care about color pick colors. "Guys, we need some colors for the logo." "Ummm, blue?" "Not color, singular, colorzzz with an S." "OK then. Red, blue, green and yellow." "Done. Now get back to work."
EDIT: Changed from "engineers" to "people who don't care about color" because it's more accurate.