if you go with royal blue..you will need another color to use as a transitional color..otherwise it would be a “hanging” contrast…
just like makeup…color combos need ‘contouring’ 
royal blue…with a deep purple accent..all binded together with the gold kaam..will make the green gharara into a masterpiece..
heres a palette
I like the taupe…it gives the gold effect..without being shiny..