@bex-dk Thanks for taking the time to look at my article. In my studies i found that pink being close to red was first used for boys as it was an aggressive colour and blue was used for girls as it was a more gentle tone. However this was changed and... well here is a link

https://www.smithsonianmag.com/arts-culture/when-did-girls-start-wearing-pink-1370097/

it is quite interesting to see the differences throughout the ages and across cultures.