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39-678: As of 2006, the school districts' official colors changed from Kelly green and white to hunter green and white. The official mascot is the viking . All elementary students of the Sto-Rox School District in grades K-3 attend Sto-Rox Primary Center in Kennedy Township . The school was built in 1997 and has an east and west wing. All middle school students in grades 4-6 attend Sto-Rox Upper Elementary in Kennedy Township. The state-of-the-art modern building

78-400: A RGB color space . The subject is asked to determine the hue that is not contaminated by neighboring unique hues, either by the method of adjustment, where the subject freely adjusts the color until they reach the unique hue, or two-alternative forced choice (2AFC) staircases. In the latter, the subject iteratively chooses which of two spectral color options is more pure. The unchosen color

117-473: A honeydew melon . In 1990, Crayola named and formulated a specific tone called jungle green . The first recorded use of jungle green as a name of a color in the English language was in 1926. Kelly green is an intense, pure green named after the common Irish family name, Kelly . It evokes the lush green Irish meadows and is also commonly associated with St. Patrick's Day . The color kombu green

156-493: A changing chromatic environment. Unique hues have also been shown to change over the course of the year as a result of adaptation to differences in the color spectrum of the environment in summer compared to winter, and have been shown to change after surgery to remove cataracts. Unique hues have played an important role in understanding linguistic relativity or the idea that language has a significant influence on thought. The way in which language and culture affects color naming

195-623: A darker shade. See the chart Color names that clash between X11 and HTML/CSS in the X11 color names article to see those colors which are different in HTML and X11. Green takes up a large portion of the CIE chromaticity diagram because it is in the central area of human color perception. The color defined as green in HTML/CSS color standard is the color called green, low green, or medium green in many of

234-469: A position halfway between chartreuse and green. Thus in modern color terminology, harlequin is the color halfway between green and chartreuse green on the RGB color wheel. The first recorded use of harlequin as a color name in English was in 1923. Harlequin is a pure spectral color at approximately 552 nanometers on the visible spectrum when plotted on the CIE chromaticity diagram . Silver Patron tequila

273-536: A tint being a green or other hue mixed with white, a shade being mixed with black. A large selection of these various colors is shown below. The color defined as green in the RGB color model is the brightest green that can be reproduced on a computer screen, and is the color named green in X11 . It is one of the three primary colors used in the RGB color space along with red and blue . The three additive primaries in

312-495: A useful tool in measuring intra-subject variability in color perception. Neitz et al (2002) show that unique yellow shifts towards longer wavelengths following multi-day adaptation to red environments, and is also shifted for deuteranomalous colorblind observers. The researchers interpret these results as suggesting a long-term normalisation mechanism which can change the weighting of cone inputs to compensate for global changes in illumination, allowing color vision to remain optimal in

351-506: A wide variety of clubs, activities and sports. The district funds: 40°28′32″N 80°04′13″W  /  40.47561°N 80.07017°W  / 40.47561; -80.07017 Kelly green This is an accepted version of this page Varieties of the color green may differ in hue , chroma (also called saturation or intensity) or lightness (or value, tone, or brightness ), or in two or three of these qualities. Variations in value are also called tints and shades ,

390-458: Is a representation of the color of kombu , edible kelp from the family Laminariaceae widely eaten in East Asia . The source of this color is the " Pantone Textile Paper eXtended (TPX)" color list, color #19-0417 TPX—Kombu Green. Laurel green is a medium light hue of chartreuish gray similar to asparagus , but lighter. The first recorded use of laurel green as a name of a color in

429-515: Is based on the opponent process theory of vision. The Natural Color System is widely used in Scandinavia . The Munsell color system (Munsell 5G) includes a color defined as green . The Munsell color system is a color space that specifies colors based on three color dimensions: hue, value ( lightness ), and chroma (color purity), spaced uniformly in three dimensions in the elongated oval at an angle shaped Munsell color solid according to

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468-414: Is debated and not yet fully understood. The Universalist side of the debate argues that unique color terms are biologically tied to the human visual system and the visual environment and are the same regardless of language and culture. The Relativist side argues that language contextualizes thought and therefore perception, the idea being that having a different environment and culture causes the perception of

507-484: Is excited independently, which renders unique hues an ineffective tool for quantifying dichromatic color vision. However, it is common to use similar techniques for defining the wavelength corresponding to "unique white" (achromatic point) of dichromats as means for quantifying their color vision. While imbalance in the L:M cone ratio is linked to mild red-green colour vision deficiency, there is no dependence of unique yellow on

546-579: Is greater sensitivity for yellows and blues, which may be due to them coinciding with the daylight locus. There is no direct evidence that larger populations of neurons are dedicated to unique hues compared to other colors, but some EEG research suggests that the latency of some EEG components may be shorter for unique hues compared to non-unique hues, and that colors can be decoded with a higher accuracy from EEG signals when they are unique hues. Unique hues are typically quantified as wavelength of monochromatic light, Munsell color , or hue degree derived from

585-466: Is involved in photosynthesis . Many shades of green have been named after plants or are related to plants. Due to varying ratios of chlorophylls (and different amounts as well as other plant pigments being present), the plant kingdom exhibits many shades of green in both hue (true color) and value (lightness/darkness). The chlorophylls in living plants have distinctive green colors, while dried or cooked portions of plants are different shades of green due to

624-509: Is only approximate as the colors of printing inks may vary. The color displayed is an approximation of the CMYK color on an RGB screen, and cannot replicate the color accurately. The color defined as green in the NCS or Natural Color System is NCS 2060-G. The natural color system is a color system based on the four unique hues or psychological primary colors red, yellow, green, and blue. The NCS

663-436: Is replaced with a color on the opposite side of the chosen color. When the same color is chosen twice in a row, this constitutes a reversal, and the step size decreases. After a certain number of reversals, the wavelength/hue of the unique hue is determined. The unique hues have been experimentally determined to represent average hue angles of 353° (carmine-red), 128° (cobalt green), 228° (cobalt blue), 58° (yellow). However,

702-410: Is sold in harlequin-colored boxes. Harlequin is also an adjective used to describe something that is colored in a pattern, usually a diamond-shaped pattern, as in the dress traditionally associated with harlequins . Similarly, it can mean anything multicolored or prismatic, such as opals or other precious gems which are highly variegated in color and hue. In the early 2000s, a harlequin color paint

741-470: Is the "Pantone Textile Paper eXtended (TPX)" color list, color # green C, EC, HC, PC, U, or UP—green. Green (Crayola) is the color called green in Crayola crayons. Green was one of the original Crayola crayons introduced in 1903. This is the X11 /HTML color dark green . Light green is a light tint of green. Lime green is a vivid, yellowish shade of green named after the lime fruit . This

780-422: Is the color bright green . This is the X11 /HTML color pale green . The first recorded use of erin as a color name was in 1922. Harlequin is a color described as being located between green and yellow (closer to green than to yellow) on the color wheel. On color plate 17 in the 1930 book A Dictionary of Color (see reference below), the color harlequin is shown as being a highly saturated rich color at

819-472: The logarithmic scale which governs human perception . In order for all the colors to be spaced uniformly, it was found necessary to use a color wheel with five primary colors—red, yellow, green, blue, and purple. The Munsell colors displayed are only approximate as they have been adjusted to fit into the sRGB gamut. Green (Pantone) is the color that is called green in Pantone . The source of this color

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858-450: The 1967 colors that were assigned separately to each service. The first recorded use of apple green as a color name in English was in 1648. This is the color called artichoke green in Pantone . The source is Pantone 18-0125 TPX. Evergreen is a color that resembles evergreens . It is currently unknown when evergreen was first used as a color name. Fern green is a color that resembles ferns . A Crayola crayon named fern

897-412: The English language was in 1705. Unique hues Unique hue is a term used in perceptual psychology of color vision and generally applied to the purest hues of blue, green, yellow and red. The proponents of the opponent process theory believe that these hues cannot be described as a mixture of other hues, and are therefore pure, whereas all other hues are composite. The neural correlate of

936-455: The L-M axis, the other unique hues do not lie on the extremes of either opponent channel (L-M and S-(L+M) axes). Therefore, the cardinal axes are not a direct correlate of our experience of unique hues and a further (third) transformation must be applied to identify correlates, i.e. each unique hue is a synthesis of the opponent process channels. One theory suggests a conversion at a point later than

975-478: The LGN, and that this produces non-linear combinations resulting in our experience of color being non-linear to the cardinal axes. However, while opponent-cells have been found in the LGN that respond to cone combinations other than those of the cardinal axes, such as M-S, there is no physiological understanding of this third transformation. An opposing theory therefore suggests that hues are learned based on variations in

1014-503: The RGB color system are the three colors of light chosen such as to provide the maximum range of colors that are capable of being represented on a computer or television set. This color is also called regular green . It is at precisely 120 degrees on the HSV color wheel , also known as the RGB color wheel ( Image of RGB color wheel ). Its complementary color is magenta . HTML/CSS uses the name lime for this color, using green to refer to

1053-678: The chlorophyll molecules losing their inner magnesium ion. Apple green is a representation of the color of the outer skin of a Granny Smith apple . A darker version of this color has been used for the IRT Lexington Avenue Line since June 1979, when the NYCTA decided to assign line colors to all the routes within the major trunk lines in the Central Business District , plus different colors for services not entering Manhattan . By doing this, they scrapped

1092-475: The idea that red, green, blue, and yellow were unique hues ( "Urfarben" ), based on the concept that these colors could not be simultaneously perceived. These hues represented the extremes of two perpendicular axes of color: a red-green axis and a blue-yellow axis. While this theory with 4 unique hues was initially considered contradictory to the Young-Helmholtz trichromatic theory's three primary colors,

1131-411: The individual to be different. Unique hues have different meaning in subjects with color vision deficiency . Unique yellow was determined to skew to higher wavelengths for anomalous trichromats ( deuteranomaly ), approaching 700 nm for strong deutans. Dichromats , who possess a single chromatic opponent channel, thereby have unique hues at the extremes of their visible spectrum , where each cone

1170-399: The latter of which form the cardinal axes. Hering and researchers until the mid 20th century expected that the cardinal axes would correspond to the unique hues, i.e. the unique hues would exist when one opponent channel is maximally stimulated and the other opponent channel is in equilibrium. However, subsequent psychophysical tests demonstrated that while unique red lies on the extreme of

1209-479: The neural organisation of the visual system.” The first transformation of light to a neuronal signal ( visual phototransduction ) yields 3 channels, each proportional to the quantal catch of one cone type (L-, M- and S-), estimated by the LMS color space . The second transformation occurs in the color-opponent cells and produces the opponent process channels: L+M (luminance), L-M (red-green), and S-(L+M) (blue-yellow),

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1248-528: The older eight-bit computer palettes . Another name for this color is green W3C or office green . The color defined as green in the CMYK color system used in printing , also known as pigment green , is the tone of green that is achieved by mixing process (printer's) cyan and process (printer's) yellow in equal proportions. The purpose of the CMYK color system is to provide the maximum possible gamut of color reproducible in printing. The color indicated

1287-539: The two theories were reconciled theoretically by Erwin Schrödinger and the later discovery of color-opponent cells in the retina and lateral geniculate nucleus (LGN) related the two theories physiologically. A physiological pathway from the cones in the retina to a neural correlate for the psychological unique hues has been elusive. Mollon and Jordan state: “...the nature of the unique hues remains mysterious and we do not know whether they tell us anything about

1326-446: The unique hues are approximated by the extremes of the opponent channels in opponent process theory. In this context, unique hues are sometimes described as " psychological primaries " as they can be considered analogous to the primary colors of trichromatic color theory . The concept of certain hues as 'unique' came with the introduction of opponent process theory, which Ewald Hering introduced in 1878. Hering first proposed

1365-434: The values have large inter-subject and slight intra-subject variability, depending on the state of adaptation of the visual system. For example, the wavelength attributed to unique green varies by up to 70 nm between subjects. The variance greatly exceeds the variance that would be expected from differing L:M cone ratios or spectral sensitivities, but the source of this variance has not been identified. Unique hues are

1404-443: The visual environment; that unique hues represent an adaptation away from the cardinal axes and unique hues cannot be explained by relative numbers of excited L- and M-cones or their sensitivities. There is mixed evidence as to whether unique hues are perceptually privileged compared to other colors. Some research suggests that there is no greater sensitivity for unique hues compared to other colors, but other evidence suggests there

1443-745: Was constructed in 2002. Both schools have convenient access to a nature trail which is located in the woods behind the buildings. All secondary students (grades 7-12) attend Sto-Rox High School in Stowe Township. The building was built in 1926 as the Stowe Township High School, but became Sto-Rox High School in the 1967 when Stowe Township School District merged with the School District of the Borough of McKees Rocks, thus forming Sto-Rox. Sto-Rox School District offers

1482-419: Was created in 1998. The first recorded use of fern green as a color name in English was in 1902. Forest green refers to a green color said to resemble the color of the trees and other plants in a forest . The first recorded use of forest green as the name of a color in the English language was in 1810. The color honeydew is a pale, greenish off-white based on the color of the interior flesh of

1521-432: Was invented for automobiles that appears different colors from different angles of view . Neon green is a bright tone of green used in psychedelic art and in fashion. Neon green became a signature of English singer/songwriter Charli XCX with the release of her 2024 album Brat . Green is common in nature, especially in plants. Many plants are green mainly because of a complex chemical known as chlorophyll which

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