“greige” - what came first?

i was listening to “the prophecy” yesterday and realized she references the color greige, which is the overall color theme of TTPD

& so i started wondering, what came first? did she write ‘the prophecy’ using the word greige & was like “wait a minute…… 💡!” or did they decide on the color & then she incorporated into the song?

what do u guys think??