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After seeing the interesting question How do ISS astronauts “get their stripes”?, I was wondering why the color red was chosen for the identifying stripe:

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I am assuming that red is the best color that stands out against their white suits and/or anything they may be working near, and perhaps shows up best when watching via Camera/CCTV. However, on this forum, someone noted that Dick Gordon's stripes were Yellow, to salute his Naval background (Navy Gold).

Also shown in one of the Answers for "How do ISS astronauts 'get their stripes'" question is a candy-striped marker, is there any official reason for that over a solid stripe? Or does that astronaut just have a strong affection for candy-canes?

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Is there official explanation on the color choices? Could an astronaut have, say a blue stripe, or [insert Astronaut's favorite color here] if they wanted?

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    $\begingroup$ The stripes started with Apollo 13. A search of the Apollo technical notes and handbooks note that the stripes are to aid in identifying crewmembers, but give no specific reason for the color red. My educated guess is that it has the highest contrast for both human eyes and black & white film. As for ISS, the suits stay on the ISS and are reused, so there is no personalization for favorite colors. $\endgroup$ – DrSheldon Aug 31 at 11:46

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