Ian Storm Taylor:

When you put pure black next to a set of meticulously picked colors, the black overpowers everything else. It stands out because it’s not natural. All of the “black” everyday objects around you have some amount of light bouncing off of them, which means they aren’t black, they’re dark gray. And that light probably has a tint to it, so they’re not even dark gray, they’re colored-dark gray.

Great explanation by Ian about why #000000 is a terrible color to use when designing. I used to love black (along with white and red), but realizing that black does not exist in nature was the first step to maturing my designs.

One tip to find good blacks: in Photoshop, I often will choose a gray and then make it opaque and use the color picker to pull in some of the saturation from the rest of the colors being used.