Download Additive Color

COLOR THEORY – Additive Color
I build a painting by putting little marks together—
some look like hot dogs, some like doughnuts.
-Chuck Close
COLOR THEORY – Additive Color
PRIMARY yo Y yg Light
Hue SECONDARY O
G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
The mixing color wheel deals
with subtractive color.
It doesn’t explain the
interaction of colored light.
COLOR THEORY – Additive Color
PRIMARY yo Y yg Light
Hue SECONDARY O
G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
RGB color chart
Primary:
Red Green
Blue
Secondary:
Cyan Magenta
All combined:
White
Yellow
COLOR THEORY – Additive Color
PRIMARY yo Y yg Light
Hue SECONDARY O
G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
Subtractive color: Y = primary
(Y can’t be made as a
mixture)
RGB color: Y = secondary
(Y is a mixture of R & G)
COLOR THEORY – Additive Color
PRIMARY yo Y yg Light
Hue SECONDARY O
+ G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
Additive Color
Light color mixtures. Colors
get brighter & more intense
as they mix.
COLOR THEORY – Additive Color
PRIMARY yo Y yg Light
Hue SECONDARY O
+ G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
LCD pixels
Color TV’s, Computer
monitors (CRT & LCD)
Plasma monitors use RGB.
Cone (color) receptor cells in
the human eye are sensitive to
RGB.
RGB LED (magnified)
COLOR THEORY – Additive Color
PRIMARY yo Y yg Light
Hue SECONDARY O
+ G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
Image Editing software
saves each color as a
“channel”
RGB = 3 Channels
Red
R+G
Green
G+B
Blue
B+R
COLOR THEORY – Additive Color
PRIMARY yo Y yg Light
Hue SECONDARY O
+ G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
Cyan
Image Editing software
Magenta saves each color as a
“channel”
CMYK = 4 Channels
Yellow
C
CM
Black
Shown on a RGB monitor,
CMYK colors are
APPROXIMATE
CMY
CMYK
COLOR THEORY – Additive Color
PRIMARY yo Y yg Light
Hue SECONDARY O
+ G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
Gamut:
The limited range of colors a
system can reproduce.
All color systems have hues that
are out-of-gamut in other systems.
NO system is perfect.
COLOR THEORY – Additive Color
Hue SECONDARY O
+ G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
Gamut:
The limited range of
colors a system can
reproduce.
All color systems have
hues that are out-ofgamut in other systems.
NO system is perfect.
COLOR THEORY – Additive Color
PRIMARY yo Y yg Light
Hue SECONDARY O
+ G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
Partitive Color
small bits of color mix as light
before they are perceived.
A brick wall as seen from far away.
COLOR THEORY – Additive Color
PRIMARY yo Y yg Light
Hue SECONDARY O
+ G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
Partitive color examples:
Ben-Day Dots
Small, semi-transparent dots used in color
printing.
Four Color Process (CMYK)
Standard color printing uses only 4 colors:
Cyan Magenta Yellow - Secondary colors of light.
Black - to provide a wider value range.
COLOR THEORY – Additive Color
Car Headlights
PRIMARY yo Y yg Light
Hue SECONDARY O
+ G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
Optical Mixture
Created with a light.
Mixture is BRIGHTER in
value than it's parents.
COLOR THEORY – Additive Color
PRIMARY yo Y yg Light
Hue SECONDARY O
+ G Object
Value
tertiary ro
COLOR bg Observer
Intensity
- B
Temperature
R
rv
V bv
Color Vibration
The eye/mind tries to
resolve small particles into
focus.
COLOR THEORY – Additive Color
Seurat used color
vibration to create
Pointillism.
Chuck Close
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