I guess it’s a natural progression (or diversion) from the grays, but I’ve been feeling another neutral combo: yellow and sand(or light taupe/tan- in addition to touches of gray)… Bowiestyle mentioned it and has some nice examples, and the image below from Marimekko is also another great example.
During my last visit to Walmart, I was excited to see these great “bath sheets”. They are part of their Back to School “Get it together” group and are so modern. 
Sand/light taupe/tan solid on the front, with muted yellow accent trim- and the back is reversible with the yellow as the solid. The best part is they are only about $9 each. (unfortunately not online, but they are in-store)
