Milk packaging utilizes a color-coding system to convey information about fat content and nutritional value, making it easier for consumers to choose the right product. Blue typically indicates milk with around 3.0% fat, while green represents standardized milk with about 4.5% fat. Orange denotes full cream milk with approximately 6.0% fat. Some brands also use magenta for double-toned milk, which contains lower fat at around 1.5%. This system, established by various dairy brands such as Amul and Mother Dairy, is designed to provide a quick visual cue for consumers, allowing them to select their preferred milk type without needing to read detailed labels. The color coding is not just a marketing gimmick; it is a well-defined categorization that enhances consumer convenience and has proven effective over the years.