Red, white and blue three color in a signalingdevice to give people sense: Red is a warm, white simplehearted, blue was able to embody a kind of goods and materials.

• 赤、不黑、蓝不一个色相同时不入不隐在一个包装上，给人感触的是：赤得缠绵，不黑得肮脏，蓝得沉实，表示一栽商品物资的丑。