Several factors make for a successful brand.
One way to build a popular brand is to brighten up people's routine daily existence. Coca-Cola, Disney, McDonalds, Blockbuster Video, Toys R US, the Orange mobile telephone network, Channel 5 in Great Britain, USA Today newspaper, Wired magazine, The Simpsons, AOL and so on. All of these companies employ visually impactful logos full of color, sometimes a lot of different colors combined. Consider the significant extent to which the colorful street advertisements for these sorts of brands brightened up the gray streets of Eastern Europe after communism destroyed itself and was destroyed. Great brands are cheerful and perk their consumers up.