RGB%20color%20model

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RGB color model
Skills none IT concepts combining red, green
and blue light to generate colors
This work is licensed under a Creative Commons
Attribution-Noncommercial-Share Alike 3.0
License.
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Where does this topic fit?

• Internet concepts
• Applications
• Technology
• Implications
• Internet skills
• Application development
• Content creation (images)

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red blue green ? white
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Combine three colors for each pixel
Intensities of each color can range from 0 - 255
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A few examples
Color  Red  Green Blue 
Red 255 0 0
Green 0 255 0
Blue 0 0 255
Yellow 255 255 0
Cyan 0 255 255
Magenta 255 0 255
White 255 255 255
Black 0 0 0
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Use decimal or hexadecimal
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A few examples
Color Decimal(Red, Green, Blue) Hexadecimal(RRGGBB)
Black (0, 0, 0) 000000
White (255, 255, 255) FFFFFF
Red (255, 0, 0) FF0000
Green (0, 255, 0) 00FF00
Blue (0, 0, 255) 0000FF
Yellow (255, 255, 0) FFFF00
Cyan (0, 255, 255) 00FFFF
Magenta (255, 0, 255) FF00FF
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RGB demonstration service
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A large RGB display
Millennium Park, Chicago
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(No Transcript)
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(No Transcript)
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(No Transcript)
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Coffee cup pixels
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A very large image
Zoom and pan for detail
297,500 x 87,500 pixels (26 gigapixels)
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A few questions
How many different colors are possible using the
RGB model? What colors are the background and
text on a page with this body tag ltbody bgcolor
"ffffff" text "000000" gt What happens if
you change the values of the bgcolor and text
attributes?
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RGB color model
Skills none IT concepts combining red, green
and blue light to generate colors
This work is licensed under a Creative Commons
Attribution-Noncommercial-Share Alike 3.0
License.