Two codes for one bridge
This page shows #C0362C, a brick red that Wikipedia's color lists used for the Golden Gate Bridge for many years. The bridge district itself gives the paint as PMS 173, or 0% cyan, 69% magenta, 100% yellow and 6% black. Turned into screen values, that mix is about #F04A00, a much brighter orange. The Wikipedia article on international orange now uses that brighter code. The color list gives no source for the older, darker code.
Picked over stripes
Architect Irving Morrow chose the color. The US Navy had other ideas and wanted the bridge painted in black and yellow stripes so ships could see it. Morrow's orange won, and the bridge opened in 1937.
The first coats were lead paint. In the mid 1960s crews began stripping the bridge and repainting it with a zinc silicate primer and a vinyl top coat. Acrylic top coats replaced the vinyl in 1990 to cut air pollution, and the full repaint ended in 1995. Since then, a team of painters has kept the bridge up by touching up spots where rust breaks through.
The 25 de Abril Bridge in Lisbon, Portugal, is painted the same color.
Related oranges
The bright aerospace version and the deep engineering version have their own pages. White text on #C0362C reaches a contrast ratio of 5.52 to 1.

