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The colour blood red is a dark shade of the colour red meant to resemble the colour of human blood (which is composed of oxygenated red erythrocytes, white leukocytes, and yellow blood plasma). [2] It is the iron in hemoglobin specifically that gives blood its red colour.
The color of blood red ranges from crimson to a dark brown-red and may have a slightly orange hue. In the RGB color spectrum, it often consists only of the color red, with no green or blue component; in the CMYK color model blood red has no cyan, and consists only of magenta and yellow with a small amount of black.
monolexemic ('green', but not 'light green' or 'forest green'), high-frequency, and; agreed upon by speakers of that language. English has 11 basic color terms: black, white, red, green, yellow, blue, brown, orange, pink, purple, and gray; other languages have between 2 and 12. All other colors are considered by most speakers of that language ...
The human eye's red-to-green and blue-to-yellow values of each one-wavelength visible color [citation needed] Human color sensation is defined by the sensitivity curves (shown here normalized) of the three kinds of cone cells: respectively the short-, medium- and long-wavelength types.
This is an accepted version of this page This is the latest accepted revision, reviewed on 7 February 2025. Very slightly purplish, deep red For the pigments used to make the color, see Carmine. "Carmine red" redirects here. For the RAL color, see Carmine red (RAL). Carmine Powdered carmine pigment Color coordinates Hex triplet #960018 sRGB B (r, g, b) (150, 0, 24) HSV (h, s, v) (350°, 100% ...
The ISCC–NBS System of Color Designation is a system for naming colors based on a set of 13 basic color terms and a small set of adjective modifiers. It was first established in the 1930s by a joint effort of the Inter-Society Color Council (ISCC), made up of delegates from various American trade organizations, and the National Bureau of ...
Red Dye No. 3 is an artificial food coloring derived from petroleum, commonly added to foods, drinks, supplements and drugs to create an appealing cherry-red or pink hue. Like all color additives ...
Light yellowish pink [6]? ? ? Methamphetamine: Substance Deep reddish orange/Dark reddish brown [6] No reaction ? Blue Methaqualone: Substance No reaction No reaction ? No reaction Methoxetamine: Substance Pink (slow) Yellow > green > red ? Slow pink > red Methylone [1] Substance Brown Orange/brown ? Blue Methylphenidate: Substance Moderate ...