Idea’s on bedroom decor?

I am painting my bedroom a dark green ( Almost an olive color, but lighter) and i have a brown colored duvet cover with green and white leaves on it. Do you have any suggestions on what I should add to it to make the color’s "pop" ? ( like white, to make it stand out? ) And what decor should I add on the walls, ect. Im thinking of adding a rug, but i cant seem to find anything.
Thanks in advance!
Oh. And i mean like.. Objects.
Not colours.
Thanks.

white or maybe even red….