White and blue

Quick answer：

The term 'white and blue' can refer to various combinations or themes. It could pertain to colors, where white and blue are common colors in the spectrum, often used together for a calming or refreshing effect. In the context of flags or symbols, it may refer to specific national flags or emblems that incorporate these colors. It can also be used metaphorically to describe a situation or idea that is both serene and dynamic.