Where is the headquater of corporation  which  official Columbia color is defined as located
Columbia blue Columbia blue, also known as Jordy blue, is a light blue tertiary color named after Columbia University. The color itself derives from the official hue of the Philolexian Society, the university's oldest student organization. The official Columbia color is Columbia blue, defined as Pantone 290 (Hex #C4D8E2). It is often mistaken for the official color of Columbia Athletics, defined as Pantone 292 (Hex #62A8E5), which is slightly darker.
District of Columbia General Hospital The District of Columbia General Hospital, previously the Gallinger Municipal Hospital, was a hospital located in Washington, D.C.. It was operational from 1806 to its controversial closing by mayor Anthony A. Williams in 2001, as the city was trying to cut costs while recovering from bankruptcy. At the time of its closure, it was the only public hospital located within the District. Originally located in Judiciary Square it moved to 19th and Massachusetts, SE in 1846. At the turn of the century, efforts to open a new public hospital at 14th and Upshur were opposed by residents.