Will it look tacky to have different colour palettes for each room?

I’m planning how I’ll furnish and decorate the new apartment that I’ll move to in 3 months (rental for unlimited time, so I can’t paint or change wallpaper). 54 square metres / 581 square feet, 2 rooms (separate kitchen).

I’m thinking terracotta for the living room and sage green for the bedroom.

I haven’t planned for the kitchen yet but suggestions are welcome. I’m thinking maybe blue or beige.

I don’t know if it will look tacky to have different colours or if the whole apartment should have one colour palette? I’m new to this interior design.