If you ever want to do a deep dive into color and visual design this article about Game of Thrones costume choices is a great place to start. How characters are dressed matter even in books. Clothing and color tell a story.
https://www.vox.com/the-goods/2019/4/3/18287327/game-of-thrones-sansa-stark-costumes-michele-clapton
@LianaBrooks Oooh this is right up my alley - thank you!