Government Designated Colors in Hex for Web Pages

The Federal Standard color system, officially named Federal Standard 595C - Colors Used in Government Procurement, is a United States Federal Standard, issued by the General Services Administration. The standard is also widely referred to as FED-STD-595, FS-595, or similar names with the version letter appended.

Federal Standard 595 is the color description and communication system developed in 1956 by the United States government. Its origins reach back to World War II when a problem of providing exact color specifications to military equipment subcontractors in different parts of the World became a matter of urgency.

Each color in the Federal Standard 595 range is identified by a five-digit code. The colors in the standard have no official names, just numbers. Federal Standard 595C was published January 16, 2008. No previous colors were removed. Thirty nine new colors were added for a total of 650 colors.