microsoft logosunun bir anlamı var. kopyaladım ve de yapıştırdım:

The blocks of colours symbolises the company's products.

Light Blue is Windows, the 'background' of everything you do on your PC. Blue is a cool and slick colour, symbolising what Microsoft wants Windows to be, slick and quick, yet cool and easy on the eye and easy to use.

Orange/red is Microsoft's Office products. Red means business, because it suggests a busy life, quick and hot, which means Office is meant to get things done nice and quick.

Green is Microsoft Gaming, mainly XBox. Green is fun and the 'Go!' colour, meaning maximum fun.

Yellow is still unclear, But I believe it represents Microsoft Hardware. Yellow is bold and strong, which is what Microsoft hardware is build to be, long-lasting and efficent.