A brand colour speaks for the brand. It can tell more than you can imagine for your business. It not only reflects the vibe of the business but also helps to gain positive emotions for your business. It helps in establishing trust and familiarity by evoking the right emotion. All major brands on the web have a strong connection with their logos. Sometimes a coloured symbol without any text reflects their brand’s message by choosing the right colours to represent. For more details http://www.xenmag.com/blog/which-colour-is-appropriate-for-your-brand