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____ RED
____ ROY
     GIV
____ ROY
     GBIV
____ GREEN
____ ROY
     GBIV
BLUE
   +
GREEN
BLUE
  +
RED
RED
  +
GREEN
COLOR is a physiological and
 psychological response to the
wavelengths of light entering the
            retina.
VISIBLE LIGHT SPECTRUM
•Situated between Infrared Light and
Ultraviolet Light
•Consists of a spectrum of wavelengths
that range from 700 nanometers to 400
nanometers approximately
•Also known as ROYGBIV or the Color
Spectrum
•Each individual wavelength within the
spectrum represents a color
DISPERSION – separation of
visible light into different
wavelengths/colors

RED – longest wavelength
and lowest frequency in the
Color Spectrum

VIOLET – shortest wavelength
and highest frequency in the
Color Spectrum
BLACK – absence of the
wavelengths of the visible
light spectrum

WHITE – seen when all the
wavelengths of the
spectrum are perceived
by the eye ; combination
of all the colors in the
spectrum
•As the light enters the eye, it strikes the
retina which is lined with sensitive cells
known as rods and cones.
•Rods – sensitive to the intensity of light but
cannot distinguish between the different
wavelengths
•Cones – color-sensing cells of the retina;
there are 3 type of cones, each sensitive
to a range of wavelengths in the spectrum
•RED CONE – sensitive to
the lower frequencies ROY

•GREEN CONE – sensitive to
the middle frequencies

•BLUE CONE – sensitive to
the higher frequencies
When a light wave strikes upon an
object, the different frequencies
 of light are either absorbed or
      reflected/transmitted.
  When can you tell when a frequency of light is absorbed or
                   reflected/transmitted?
SELECTIVE ABSORPTION OF LIGHT:
•Occurs when the frequency of the incident light is the
same as the frequency at which the atoms of the object
vibrate
•When a frequency of light is absorbed, it is not seen or
observed in an object.
•Objects have different colors because they contain
different pigments which absorb one or more
frequencies of light.
   Ex. In a red object illuminated by white light, the OYGBIV
   components of the incident light is not observed. OYGBIV
   are the absorbed frequencies of light.
When the frequency of the incident
   light wave does not match the
frequency at which the atoms of the
     object move, reflection and
      transmission of light occurs.
Important components in
 determining the color of an object:
          • INCIDENT LIGHT
  • KIND OF PIGMENT IN THE OBJECT
                     (or what colors are absorbed by the pigment)


**As to why, this will be discussed further in the topic of Color Addition and Subtraction.
•Occurs when the frequency of the
  incident light is not the same as the
 frequency at which the atoms of the
        opaque object vibrate
   •The color of the object depends on the
frequency of the light wave that is reflected.
Ex. In a red opaque object illuminated by white light, RED
LIGHT is reflected and it is the color we perceive. OYGBIV
was observed therefore you cannot perceive it.
WHAT ABOUT BLACK AND WHITE OBJECTS?
•When an object is black, all the colors of the spectrum
are absorbed by pigment in the object.

•When an object is white, all the colors of the
spectrum are reflected and nothing is absorbed.
•Occurs when the frequency of the
   incident light is not the same as the
  frequency at which the atoms of the
 translucent/transparent object vibrate
   •The color of the object depends on the
frequency of the light wave that is transmitted.
 Ex. In a red glass illuminated by white light, RED LIGHT is
 transmitted through. OYGBIV was absorbed by the pigment
 in the glass.
Why is window glass colorless?
   - It transmits light of all visible
frequencies and does not absorb
        any frequency of light.
- the process of adding two or more colors for production of a new color
White light is not only
      produced by
   combining all the
  frequencies of the
color spectrum. White
    light can is also
      produced by
     combining the
primary colors of light:
   red, green, blue.
ADDITIVE PRIMARY COLORS OF
            LIGHT
  RED    GREEN    BLUE
When two primary
   colors of light: red,
     green, blue are
   added, secondary
    colors of light are
     produced. The
  secondary colors of
light are yellow, cyan
     and magenta.
SECONDARY COLORS OF LIGHT

BLUE + GREEN = YELLOW BLUE + RED = MAGENTA   BLUE + GREEN = CYAN
COMPLEMENTARY COLORS OF LIGHT
 -two colors of light (one primary, one secondary that together, in equal
 intensities produce white light
 -the complementary colors of light are magenta & green, cyan & red and
 yellow & blue.


magenta + green               cyan + red              yellow + blue




(red + blue) + green      (green + blue) + red      (red + green) + blue
       = white                 = white                     = white
-the process of determining the resulting color of an object through
subtracting from the frequencies in incident light the frequencies that
are absorbed by the pigment in the object
Important components in determining the color of an
                       object:
                  • INCIDENT LIGHT
          • KIND OF PIGMENT IN THE OBJECT
                     WHY?
The kind of pigment of the object determines
what colors it absorbs from the incident light. The
color that is not absorbed (or subtracted) is the
resulting color.
SUBTRACTIVE PRIMARY COLORS OF
LIGHT & PRIMARY COLORS OF PAINT

    YELLOW              MAGENTA                CYAN




absorbs blue light   absorbs green light   absorbs red light
-when you add two
subtractive primary
colors, you get an
additive primary color
as a result
- when you add all
subtractive primary
colors, you get BLACK
YELLOW           MAGENTA              CYAN
-GREEN = RED      -RED = BLUE       -BLUE = GREEN
-RED = GREEN      - BLUE = RED      -GREEN = BLUE

•The color that   •The color that   •The color that
YELLOW LIGHT      MAGENTA LIGHT     CYAN LIGHT
can absorb is     can absorb is     can absorb is
BLUE              GREEN             RED
Complementary Colors and Color
        Subtraction
-the color of the light absorbed by a pigment is the complementary
Color of that pigment

              PIGMENT                    ABSORBS
                  BLUE              YELLOW ( RED & GREEN )
         YELLOW ( RED & GREEN )             BLUE
                 GREEN              MAGENTA (BLUE & RED)
          MAGENTA (BLUE & RED)              GREEN
                  RED                CYAN (GREEN + BLUE)
           CYAN (GREEN + BLUE)               RED
GROUP 3 ST. ANGELA - COLORS
GROUP 3 ST. ANGELA - COLORS
GROUP 3 ST. ANGELA - COLORS
GROUP 3 ST. ANGELA - COLORS

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GROUP 3 ST. ANGELA - COLORS

  • 1.
  • 2.
  • 4. ____ ROY GIV
  • 5. ____ ROY GBIV
  • 7. ____ ROY GBIV
  • 8.
  • 9. BLUE + GREEN
  • 12. COLOR is a physiological and psychological response to the wavelengths of light entering the retina.
  • 13.
  • 14. VISIBLE LIGHT SPECTRUM •Situated between Infrared Light and Ultraviolet Light •Consists of a spectrum of wavelengths that range from 700 nanometers to 400 nanometers approximately •Also known as ROYGBIV or the Color Spectrum •Each individual wavelength within the spectrum represents a color
  • 15. DISPERSION – separation of visible light into different wavelengths/colors RED – longest wavelength and lowest frequency in the Color Spectrum VIOLET – shortest wavelength and highest frequency in the Color Spectrum
  • 16. BLACK – absence of the wavelengths of the visible light spectrum WHITE – seen when all the wavelengths of the spectrum are perceived by the eye ; combination of all the colors in the spectrum
  • 17. •As the light enters the eye, it strikes the retina which is lined with sensitive cells known as rods and cones. •Rods – sensitive to the intensity of light but cannot distinguish between the different wavelengths •Cones – color-sensing cells of the retina; there are 3 type of cones, each sensitive to a range of wavelengths in the spectrum
  • 18. •RED CONE – sensitive to the lower frequencies ROY •GREEN CONE – sensitive to the middle frequencies •BLUE CONE – sensitive to the higher frequencies
  • 19.
  • 20.
  • 21. When a light wave strikes upon an object, the different frequencies of light are either absorbed or reflected/transmitted. When can you tell when a frequency of light is absorbed or reflected/transmitted?
  • 22. SELECTIVE ABSORPTION OF LIGHT: •Occurs when the frequency of the incident light is the same as the frequency at which the atoms of the object vibrate •When a frequency of light is absorbed, it is not seen or observed in an object. •Objects have different colors because they contain different pigments which absorb one or more frequencies of light. Ex. In a red object illuminated by white light, the OYGBIV components of the incident light is not observed. OYGBIV are the absorbed frequencies of light.
  • 23. When the frequency of the incident light wave does not match the frequency at which the atoms of the object move, reflection and transmission of light occurs.
  • 24. Important components in determining the color of an object: • INCIDENT LIGHT • KIND OF PIGMENT IN THE OBJECT (or what colors are absorbed by the pigment) **As to why, this will be discussed further in the topic of Color Addition and Subtraction.
  • 25. •Occurs when the frequency of the incident light is not the same as the frequency at which the atoms of the opaque object vibrate •The color of the object depends on the frequency of the light wave that is reflected. Ex. In a red opaque object illuminated by white light, RED LIGHT is reflected and it is the color we perceive. OYGBIV was observed therefore you cannot perceive it.
  • 26. WHAT ABOUT BLACK AND WHITE OBJECTS? •When an object is black, all the colors of the spectrum are absorbed by pigment in the object. •When an object is white, all the colors of the spectrum are reflected and nothing is absorbed.
  • 27.
  • 28. •Occurs when the frequency of the incident light is not the same as the frequency at which the atoms of the translucent/transparent object vibrate •The color of the object depends on the frequency of the light wave that is transmitted. Ex. In a red glass illuminated by white light, RED LIGHT is transmitted through. OYGBIV was absorbed by the pigment in the glass.
  • 29. Why is window glass colorless? - It transmits light of all visible frequencies and does not absorb any frequency of light.
  • 30.
  • 31.
  • 32. - the process of adding two or more colors for production of a new color
  • 33. White light is not only produced by combining all the frequencies of the color spectrum. White light can is also produced by combining the primary colors of light: red, green, blue.
  • 34. ADDITIVE PRIMARY COLORS OF LIGHT RED GREEN BLUE
  • 35. When two primary colors of light: red, green, blue are added, secondary colors of light are produced. The secondary colors of light are yellow, cyan and magenta.
  • 36. SECONDARY COLORS OF LIGHT BLUE + GREEN = YELLOW BLUE + RED = MAGENTA BLUE + GREEN = CYAN
  • 37. COMPLEMENTARY COLORS OF LIGHT -two colors of light (one primary, one secondary that together, in equal intensities produce white light -the complementary colors of light are magenta & green, cyan & red and yellow & blue. magenta + green cyan + red yellow + blue (red + blue) + green (green + blue) + red (red + green) + blue = white = white = white
  • 38. -the process of determining the resulting color of an object through subtracting from the frequencies in incident light the frequencies that are absorbed by the pigment in the object
  • 39. Important components in determining the color of an object: • INCIDENT LIGHT • KIND OF PIGMENT IN THE OBJECT WHY? The kind of pigment of the object determines what colors it absorbs from the incident light. The color that is not absorbed (or subtracted) is the resulting color.
  • 40. SUBTRACTIVE PRIMARY COLORS OF LIGHT & PRIMARY COLORS OF PAINT YELLOW MAGENTA CYAN absorbs blue light absorbs green light absorbs red light
  • 41. -when you add two subtractive primary colors, you get an additive primary color as a result - when you add all subtractive primary colors, you get BLACK
  • 42. YELLOW MAGENTA CYAN -GREEN = RED -RED = BLUE -BLUE = GREEN -RED = GREEN - BLUE = RED -GREEN = BLUE •The color that •The color that •The color that YELLOW LIGHT MAGENTA LIGHT CYAN LIGHT can absorb is can absorb is can absorb is BLUE GREEN RED
  • 43. Complementary Colors and Color Subtraction -the color of the light absorbed by a pigment is the complementary Color of that pigment PIGMENT ABSORBS BLUE YELLOW ( RED & GREEN ) YELLOW ( RED & GREEN ) BLUE GREEN MAGENTA (BLUE & RED) MAGENTA (BLUE & RED) GREEN RED CYAN (GREEN + BLUE) CYAN (GREEN + BLUE) RED