I have a tile floor in the basement and want an area rug to warm it up. I need it to have a small percentage of black in the strands, to tie it to the dark floor, but still have it be a light color. (The tile is dark.) In other words, no pattern or decoration, just a simple rug with mixed colors that blend together to look a uniform shade of color. As you can see, I don't know the right lingo to use!

I'm not finding rugs like this as I search. Where do I buy them? And what is the right way to put it so that those results come up for me? I feel very silly not to know what to call it! :) Thanks.