Amazon uses orange for the smile-shaped arrow in its logo, which runs from the “a” to the “z.” The text is usually black on white or white on a very dark blue, a shade the brand also uses on its website. The HEX codes are commonly used values, not published as an official specification.
These are commonly used reference values; they can vary by source, material or screen. Brand names and colors belong to their owners; this page only lists color codes for information.