Hughes 31

Hughes 31 refers to a specific shade of blue paint originally formulated by and for Hughes Aircraft Company, later acquired by Boeing. This particular blue was widely used on the interior and exterior of Hughes' aircraft, spacecraft, and other hardware developed throughout the mid-20th century onward.

The exact chemical composition of Hughes 31 is proprietary information, but it is generally understood to be a medium to light blue, often described as having a slightly muted or understated quality. It was chosen for its aesthetic appeal, visibility in various lighting conditions, and potential for effective use in branding.

The use of Hughes 31 extended beyond purely functional applications. It was also integrated into the company's corporate identity, appearing in logos, signage, and even office décor. As such, the color became strongly associated with Hughes and its legacy of innovation in aerospace and technology. Even after the company's acquisition and subsequent dispersal, the distinctive blue shade remains recognizable and evokes memories of the company's historical contributions.

The color is not a widely recognized or standardized color in the same way as, for instance, Pantone colors or RAL colors. However, references to Hughes 31 exist within certain aerospace and historical preservation communities, particularly among those involved in restoring or maintaining vintage Hughes-era equipment and documentation. Its significance lies primarily in its historical context and association with a specific company and period of technological advancement.