One of the first things they teach you in mosaic class is how much of a difference grout color makes.* It's almost freaky.
I mean, look at this! I used the exact same pattern and the same tiles on these two mirrors. The grout color makes a huge difference in how the tile colors appear:
I can't decide which one I like better.
I was finishing up the earring display I was making for my friend immediately after I was freaking out at the color differences above. I decided it would be fun do an experiment with the various shades of gray grout I had sitting around before I settled on a color.
I made a little test board:
Even a slightly different shade of the same color can make a huge difference. I liked the darker one in the top left, but since this is supposed to be for a display I wanted the background to be a little less contrast-y. I chose the bottom right, which is actually the two colors on the left mixed together.
I need to find better lighting for these pictures.
The grout color ended up being a little lighter when it dried, but it turned out about how I wanted it to. The person it was for seemed to like it too, which is the important thing.
I also need to slow down and take better pictures. NO TIME FOR COMPOSITION MUST BLOG NOW AAAAAHHHHH
After that, my worktable is clear. I'm on vacation now, hitting the road tomorrow to spend time with friends and family, eat a bunch of food, and see cool shit and get inspired.
*We were also advised not to use white grout unless you're going for a very specific look, say white on white. It tends to look less polished than other colors, or so they say.