Following up on my post about Ann Sack’s basic ceramic tile in 153 colors, I wanted to call out the fact that their extensive range of sizes also includes 4-1/4″ hexagon tiles. And in this other post on Sack’s Elements line, there is a 4″ hex. These larger hex tiles are another lovely choice, I think, for a mid-century Retro Renovation bathroom. I am thinking: 4″ hex tile on the floor…. 6″ wide sanitary cove base on the bottom of the wall… a square field tile on the wall… topped by a 2″x6″ bullnose. I’d do all matte finish, I think. Bullnose and sanitary cove are same color… field tile and floor tile the same color or, floor tile could be same color as bullnose and sanitary cove, especially if you want to go white.
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Ann Sacks basic 4″ ceramic tile in 153 colors
Ceramic tile in 147 colors and 26 sizes from Ann Sacks Elements Ceramic Basics
Starburst tiles from Ann Sacks and Barbara Barry – simply gorgeous 
Your main example is a yummy mix of colors. I’ve loved Ann Sacks almost since I moved to Portland! I’m still here and she has expanded nationwide!