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ISCC–NBS descriptor. Black. B: Normalized to [0–255] (byte) Black. #000000. 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.
The first letter of the color code is matched by order of increasing magnitude. The electronic color codes, in order, are: 0 = Black; 1 = Brown; 2 = Red; 3 = Orange; 4 = Yellow; 5 = Green; 6 = Blue; 7 = Violet; 8 = Gray; 9 = White; Easy to remember. A mnemonic which includes color name(s) generally reduces the chances of confusing black and brown.
The IALA recommends categorical color codes in 7 colors: red, orange, yellow, green, blue, white & black. [4] Adding redundant coding of luminosity and colorfulness adds information and increases speed and accuracy of color decoding tasks. [3]
Black is the darkest shade, and the result of the absence or complete absorption of light. Like white and gray, it is an achromatic color, literally a color without hue.
RGB Color List. #FFCCCC. #FFC0C0. #FF9999. #FF8080. #FF6666. #FF4040. #FF3333. #FF0000.
Code black: bomb threat/suspicious package; Code blue: cardiac arrest/medical emergency; Code brown: chemical spill/hazardous material; Code green: evacuation; Code grey: shelter in place/air exclusion; Code orange: mass casualty incident; Code purple: hostage situation; Code red: fire; Code white: violence/aggression; Code yellow: missing patient
25-pair color code Pair no. Major color Minor color 1: White: Blue 2: Orange 3: Green 4: Brown 5: Slate 6: Red: Blue 7: Orange 8: Green 9: Brown 10: Slate 11: Black: Blue 12: Orange 13: Green 14: Brown 15: Slate 16: Yellow: Blue 17: Orange 18: Green 19: Brown 20: Slate 21: Violet: Blue 22: Orange 23: Green 24: Brown 25: Slate
Color Name Hexadecimal R G B Notes Radical Red #FF355E: 255 53 94 Introduced in 1990. Wild Watermelon #FD5B78: 253 91 120 Same color as "Ultra Red" (1972–1990). Outrageous Orange #FF6037: 255 96 55 Same color as "Ultra Orange" (1972–1990). Atomic Tangerine #FF9966: 255 153 102 Same color as "Ultra Yellow" (1972–1990). Neon Carrot
Jet black #0A0A0D: 14.14: 14: 14: 16: 240° 6.67: 5.88: 4.041: 0.091: −0.873: 12: 12: 0: 94: 0 RAL 9006: White aluminium: #A5A8A6: 160.93: 161: 161: 160: 0.17° 0.53: 62.94: 66.321: −0.347: 0.545: 0: 0: 1: 37 — RAL 9007: Grey aluminium #8F8F8C: 132.92: 135: 133: 129: 48° 2.02: 51.57: 55.547: −0.061: 2.142: 0: 1: 4: 47 — RAL 9010 ...
The Black Codes, sometimes called the Black Laws, were laws which governed the conduct of African Americans (both free and freedmen ). In 1832, James Kent wrote that "in most of the United States, there is a distinction in respect to political privileges, between free white persons and free colored persons of African blood; and in no part of ...
