Des murs roses
Here's a breakdown:
* Des: This means "some" or "of the" and is used to pluralize the noun "murs" (walls).
* Murs: This is the plural form of "mur," meaning "wall."
* Roses: This is the plural form of "rose," meaning "pink."
You could also say:
* Les murs sont roses: This means "The walls are pink."
* Des murs de couleur rose: This means "Walls of pink color."
The choice depends on the context and how specific you want to be.