Black is the color of objects that do not emit or reflect light in any part of the visible spectrum; they absorb all such frequencies of light. Black is the darkest possible color. While this platonic ideal black is never found with actual pigments or other coloring, sufficiently dark items are generally referred to as "black".
The color name dim gray first came into use in 1987, when this color was formulated as one of the colors on the X11 color list, introduced that year. After the invention of the World Wide Web in 1991, these colors became known as the "X11 web colors".
The color Charleston green originated after the American Civil War, when the North provided black paint to the South for use in its reconstruction. Charlestonians, i.e., the inhabitants of Charleston, South Carolina, mixed the black with a little bit of yellow and blue and created Charleston green. Since this color has a hue code of 180, it is actually an extremely dark shade of cyan.
This color looks black unless the sun hits it just right, and then the color registers a very dark forest green. From Rust-Oleum paint company it is color No. 214086 but still looks black on color cards.