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  2. Soil color - Wikipedia

    en.wikipedia.org/wiki/Soil_color

    The Munsell color system includes the following three components: Hue: indicates the dominant spectral (i.e., rainbow) color, which in soil is generally yellow and/or red. Each page of the Munsell soil color book displays a different hue. Examples include 10YR, 5YR, and 2.5Y. Value: indicates lightness or darkness. Value increases from the ...

  3. Forensic colorimetry - Wikipedia

    en.wikipedia.org/wiki/Forensic_colorimetry

    Forensic colorimetry, or forensic color analysis, is the examination of specimen color for purposes of forensic investigation. Typical specimens involved in color analyses include pigments, dyes, or other objects that are distinguishable by their intrinsic color. Analyses may be conducted by-eye or by computational methods, both by matching ...

  4. Shades of red - Wikipedia

    en.wikipedia.org/wiki/Shades_of_red

    The color is defined as red in the Munsell color system (Munsell 5R). The Munsell color system is a color space that specifies colors based on three color dimensions: hue, value , and chroma (color purity), spaced uniformly in three dimensions in the elongated oval at an angle shaped Munsell color solid according to the logarithmic scale which ...

  5. History of Crayola crayons - Wikipedia

    en.wikipedia.org/wiki/History_of_Crayola_crayons

    The Munsell color wheel consisted of five "principal hues" (red, yellow, green, blue, and purple), and five "intermediate hues" (yellow red, green yellow, blue green, blue purple, and red purple). Each color was available in either "maximum chroma" or with "middle value and middle chroma."

  6. Lightness - Wikipedia

    en.wikipedia.org/wiki/Lightness

    In colorimetry and color appearance models, lightness is a prediction of how an illuminated color will appear to a standard observer. While luminance is a linear measurement of light, lightness is a linear prediction of the human perception of that light. This distinction is meaningful because human vision's lightness perception is non-linear ...

  7. Color vision test - Wikipedia

    en.wikipedia.org/wiki/Color_vision_test

    A color vision test is used for measuring color vision against a standard. These tests are most often used to diagnose color vision deficiencies ( color blindness ), though several of the standards are designed to categorize normal color vision into sub-levels. With the large prevalence of color vision deficiencies (8% of males) and the wide ...

  8. List of Crayola crayon colors - Wikipedia

    en.wikipedia.org/wiki/List_of_Crayola_crayon_colors

    Maximum Blue Purple #ACACE6 172 172 230 1926–1944 Part of the Munsell line. Violet-Blue #766EC8 118 110 200 1903–circa 1910, 1930–1990 Known as "Blue-Violet", 1930–1958. Blue-Violet #6456B7 100 86 183 1949–present Known as "Violet" 1949–1958. Yes Yes Yes Yes Yes Ultramarine Blue #3F26BF 63 38 191 1903–1944 Middle Blue Purple

  9. Fuchsia (color) - Wikipedia

    en.wikipedia.org/wiki/Fuchsia_(color)

    The web color fuchsia is equivalent to the pure chroma on Munsell Color Wheel of the Munsell color system that is designated as "5RP" (reddish purple) i.e., a purple that is shaded toward red (the color we can achieve today with computers is a much more saturated pure color wheel chroma hue than the original color chip shown on the Munsell ...