Transcript Properties of Color

Color Basics
Visible White Light
Visible white light from the sun is part of the electromagnetic
spectrum. Using a prism, white light can be broken down into
seven colors. Each color has its own distinct frequency and
wavelength.
The wavelengths and frequencies also corresponds
mathematically to elements in the periodic table and
the musical notes E F G A B C D
Additive RGB Color Model
The additive color model is used for
media that emit light.. Television,
computer screens and other types of
video
The additive model is based on the
three primary colors Red, Blue and
Green. Other colors are created by
overlapping the RGB colors.
Because RGB color on digital displays
is formed using binary computer code
(10011001) Because of the complexity
of color in the analog world, over
1,000,000,000 colors cannot be
accurately reproduced using the digital
color palate,
Analog vs Digital
HEX to RGB COLOR
HEX to BINARY
You live in an analog world. Digital information is only a
simulation of the analog world.
Subtractive RYB Color Model
Artists and the good folks at your
local paint store use a subtractive
color model based on Red, Yellow
and Blue or RYB
Colors are arranged in groups of
three called triads. This color
model has existed for over 1000
years. Some versions also include
a fourth color, Green. The RYB
subtractive model best represents
the colors found in our natural
world.
Subtractive CMYK Color Model
The CMYK subtractive model is based on
yellow, cyan, magenta and black. The
CMYK model is used in the printing
industry to produce newspapers,
magazines, packages, signs and posters.
The CMYK model creates bright intense
colors that work well on a variety of
materials from paper to plastic. It is also
the color model used in the manufacture
of and processing of color film for
photography.
HVS
Hue is what we normally think of as the
pure color such as Red, Blue, Yellow or
Green. It is the dominate wavelength in
the light and does not have any tint (white)
or share (black) added.
Value describes the overall intensity or
strength of the hue from lightest to
darkest.
Saturation can also be called a color's
intensity. It is a measurement of how
different from pure grey the color is.
Saturation is not really a matter of light
and dark, but rather how pale or strong
the colour is. The saturation of a color is
not constant, but it varies depending on
the surroundings and what light the color
is seen in.
The Color Wheel
Digital RYG Color Wheel
Physiological Effects of Color
Different color hues are made up of different wavelengths of
light travelling at different frequencies.
These wavelengths and frequencies have different physiological
effects on the human body.
Warm Colors
Warm colors have larger wavelengths
travelling at lower frequencies which
tend to excite the viewer on a
physiological level by increasing heart
rate, temperature and brain activity.
Warm colors are sometimes referred to
as aggressive colors.
Cool Colors
Cool Colors have shorter
wavelengths travelling at higher
frequencies which tend to calm the
viewer on a physiological level by
decreasing heart rate, body
temperature and brain activity.
Cool colors are sometimes referred
to as recessive colors
Cultural and Psychological Aspects of Color
Over the centuries, people have given colors
cultural meanings which can have a
psychological effect on the viewer.
In North America, the bride traditionally usually
wears a white gown to symbolize purity.
However, white would not be an appropriate
color for a wedding in China because it is the
color of mourning.
If a bride chooses a white wedding gown, her
parents would probably not allow her to get
married.
Colors can have multiple cultural and psychological
meanings.