Blush pink wallpaper: Gustave, £37 Shop at muralswallpaper.co.uk Credit: Farrow and Ball ...

But just like real sunrises and sunsets, the effect of ombré wallpaper in a room is more than the sum of those parts—and more enduring, even classic, than just a passing trend.

Think pieces the internet over (ahem) would have you believe that rose gold---a.k.a. “millennial pink,” “pale dogwood,” and “rose quartz”---was the definitive color trend of 2016. This ...