Shades of black, or off-black colors, are colors that differ only slightly from pure black. These colors have a low lightness. From a photometric point of view, a color which differs slightly from black always has low relative luminance. Colors often considered "shades of black" include onyx, black olive, charcoal, and jet.
These colors may be considered for part of a neutral color scheme, usually in interior design as a part of a background for brighter colors. Black and dark gray colors are powerful accent colors that suggest weight, dignity, formality, and solemnity.[1]
In color theory, a shade is a pure color mixed with black. It decreases its lightness while nearly conserving its chromaticity. Strictly speaking, a "shade of black" is always a pure black itself and a "tint of black" would be a neutral gray. In practice, many off-black colors possess a hue and a colorfulness (also called saturation).
Black is a color, the perception of which is evoked by the total absence of light that stimulates any of the three types of color sensitive cone cells in the human eye and with very low brightness compared to the surroundings. A black visual stimulation will be void of hue and grayness. Black is the darkest possible color.
Technical black varieties
Surface treatments to reflect as little light as possible have been developed throughout history, usually based on carbon.[2] Intensive research to approach the ideal black body (which would absorb all incident electromagnetic radiation) though has emerged mainly in the 21st century. Important technical blacks include carbon black,[3]super black[4] and Vantablack.[5]
In printing, rich black uses 100% black ink with the addition of other inks to achieve a blacker color.
Variations of black (off-black colors)
The colors are arranged in order of value or brightness, with the lightest colors at the top and the darkest at the bottom.
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 displayed at right matches the color sample called taupe referenced below in the 1930 book A Dictionary of Color, the world standard for color terms before the invention of computers. However, the word taupe is currently often used to refer to lighter shades of taupe, and therefore another name for this color is dark taupe.
The first use of taupe as a color name in English was in the early 19th century (exact year is not known).[12]
Black olive is a representation of the color of black olives. Also known as olive, color No. 6015, in the RAL color matching system, widely used in Europe.
According to a popular story, the color Charleston green originated after the American Civil War, when the North provided black paint to the South for use in its reconstruction. The inhabitants of Charleston, South Carolina mixed the black with a little bit of yellow and blue and created Charleston green. The earliest known use of the term to describe a dark shade of greenish black is 1953.[14]
Since this color has a hue code of 180, it is actually an extremely dark shade of cyan. The paint manufacturer Duron/Sherwin-Williams paint color number for "historic Charleston green" is DCR099—the color sample at right was taken from this color swatch (hex code #232B2B), which is on the website accessible called Colors of Historic Charleston.[15] 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.
The color licorice (also known as light black)[citation needed] was introduced by Crayola in 1994 as one of the colors in its specialty Crayola Magic Scent crayons with the scent of licorice candy.
^Pile, John F. Interior Design Upper Saddle River, New Jersey:2007 Prentice-Hall p. 316
^West FitzHugh, Elisabeth; Winter, John. "Pigments based on Carbon". In Berrie, Barbara H. (ed.). Artists’ Pigments: A Handbook of Their History and Characteristics. Vol. 4. pp. 1–37. ISBN9781904982234.
^Theocharous, E.; Deshpande, R.; Dillon, A. C.; Lehman, J. (2006). "Evaluation of a pyroelectric detector with a carbon multiwalled nanotube black coating in the infrared". Applied Optics. 45 (6): 1093–7. Bibcode:2006ApOpt..45.1093T. doi:10.1364/AO.45.001093. PMID16523768.
^Maerz and Paul A Dictionary of Color New York: 1930 McGraw-Hill p. 194; Color Sample of Davy’s Grey: p.. 117 Plate 47 Color Sample A4
^Maerz and Paul. A Dictionary of Color. New York: McGraw-Hill, 1930. p. 192; color sample: . 117, plate 47 Color Sample A2 – Charcoal
^Maerz and Paul A Dictionary of Color New York: 1930 McGraw-Hill p. 205; Discussion of Color Taupe, p. 183; Color Sample of Taupe: p. 55 Plate 16 Color Sample A6
^Maerz and Paul. A Dictionary of Color. New York: McGraw-Hill, 1930. p. 197
