Grey is the key to all of this. (actually interesting)
www.youtube.com/watch?v=_ff_yC_SqT8 - a 2 minute video from the EC Henry youtube channel.
The blurb: ‘While texturing a replica of Luke Skywalker’s T-47 snowspeeder, I noticed something very interesting. It’s painted with grey stripes. Just like another speeder Luke used to own, in fact. This video explores an interesting Star Wars color connection that’s been hidden for 45 years.’