American Express brand colors are blue and white.
Hex, RGB, CMYK and Pantone® (PMS) color codes and values are listed below. You can also download the color palette of the American Express brand with their hexadecimal codes.
Unless stated, all the colors are from the official American Express brand guidelines, a link to which is provided on this page along with a link to their web site.
Please note: Typically, hex and RGB color codes are for digital use and CMYK values are for standard color printers.