C O L O R S - PowerPoint PPT Presentation

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C O L O R S

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Subtractive Color. Color system in which cyan, magenta, and yellow are subtracted from white to ... A subtractive color which reflects green and red while ... – PowerPoint PPT presentation

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Title: C O L O R S


1
C O L O R S
  • PRINT VS MULTIMEDIA

2
Main Difference
  • Print
  • Primary Colors
  • CMYK
  • Cyan, Magenta, Yellow, Black - Subtractive Color
    system
  • Add together black
  • Multimedia
  • Primary Colors
  • RGB
  • Red, Green, Blue
  • Additive Color system
  • Add together white

3
CYMK
  • Subtractive ColorColor system in which cyan,
    magenta, and yellow are subtracted from white to
    produce other colors.
  • MagentaReddish - purple color which reflects
    blue and red while absorbing green.
  • CyanA greenish - blue color, absorbing red light
    and reflecting green and blue light.
  • YellowA subtractive color which reflects green
    and red while absorbing blue.

4
Additive Color System
  • Refers to the combination in varying proportions
    of red, green, and blue light to create the
    colors of the palette.
  • See font selection in PPT for example. (more
    colors custom)

5
Summary
  • Warning Mixing colors in HTML is directly
    opposite from mixing colors with paint. Low
    amounts of color make dark shade high amounts of
    color make bright shades. With HTML, you are
    mixing light, not paint.
  • http//www.devshed.com/Client_Side/Multimedia/Web_
    Graphics/print_html

6
More info
  • There is a fundamental difference between color
    and pigment.
  • Color represents energy radiated by a luminous
    object such as a cathode ray tube (CRT) or a
    light-emitting diode (LED).
  • Primary colors red (R), green (G), and blue
    (B).
  • When you see a red area on a CRT, it looks red
    because it radiates a large amount of light in
    the red portion of the electromagnetic radiation
    spectrum (around 750 nanometers), and much less
    at other wavelength.

7
More info
  • Pigments, as opposed to colors, represent energy
    that is not absorbed by a substance such as ink
    or paint.
  • The primary pigments are cyan (C), magenta (M),
    and yellow (Y). Sometimes black (K) is also
    considered a primary pigment, although black can
    be obtained by combining pure cyan, magenta, and
    yellow in equal and large amounts.
  • When you see yellow ink on a page, it looks
    yellow because it absorbs most energy at all
    visible wavelengths except in the yellow portion
    of the spectrum (around 600 nanometers), where
    most of the energy is reflected.

8
Sources
  • http//www.nikmultimedia.com/usa/resources/publica
    tions/glossary.shtmlprimarycolors sharpening
    example
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