Microsoft revealed the official Windows 8 logo, especially designed for its Metro interface. The entire logo is colored in blue and looks mostly like a flag or you can say four blue tiles set up stuck on a white wall. The logo can also be compared with Microsoft Windows 1.0 which was also designed in blue and both look almost the same. According to the Windows Team, the redesign has been done to portray the original meaning and bring Windows back to its roots.
[Source: Windows Team Blog]