Purple is associated with creativity, originality, royalty, and fantasy. Famous brands that incorporate this color into their logos include Cadbury, Hallmark, and Milka chocolates.
Black is associated with mystery, strength, secrets, sophitication, and seriousness. Black is used by many high-end brands either as a paired or main corporate color. Such brands include Chanel, Prada, Zara, and Adidas.
Grey / Charcoal is associated with elegance, formality, and neutrality. This color, depending on shade, can have a cool, clean and simple look. Famous brands which use this color include Wikipedia, Swarovski, Mercedes-Benz, and Lexus.
Pink / Heliconia is associated with love, calm, warmth, and the feminine. Famous brands that feature this color prominently include Victoria's Secret, Cosmopolitan, and Barbie.
Blue / Royal Blue is associated with awareness, openness, and control. Famous brand logos which feature this color include Internet Explorer, Skype, WordPress, and Twitter.