Brand logo is a combination of shape and colour. Brand name may or may not  form part of the brand logo. It is a visual representation of the brand. Each brand name evokes certain colours in its logo, say red colour and the Tiger biscuits. This is colour distinctiveness of the logo. In short, a logo is a visual signature of the brand.

The elements of brand logo are — a brand name, geometric shape, colour, slogan and font. The most widely used colours are red and white. Some logos use red colour e.g. Thums Up, Pepsodent, Kit Kat etc. Some logos use blue colour e.g. Pepsi, Samsung. Some use yellow colour e.g. Sundrop. Red and white colour logos are those of Coke, Kit Kat, Nestle. Most logos have geometric shapes e.g. Star Plus, Kingfisher, HSBC. There are many without geometric shape e.g. Nescafe, Lux, 7 Up. Perhaps these brands are associated with package colour. Liril is packaged in a green wrapper.