Why full combination of RGB is white on screen, while full combination of CMY in printing is black?
That's simple. Pigments absorb colours and reflect some colours. White light has been proven to be a linear combination of a range of frequencies from violet to red. This is where the colors of the rainbow come from. When you illuminate pigment with white light, if it is a near pure red, then only red is reflected. But if you mix the primary colors, then each absorbs its own lot, leaving nothing to reflect and you see black. I've written a few hubs on color theory if you would like to take a look.
On the RGB for your computer screen, this is the same as recombining the colours of the rainbow back into white light.
The so called primary colours for pigments are Red, Green, Yellow and the secondaries are green, orange and purple.
With light, the primaries are red, green and blue while the secondaries are cyan, yellow and magenta.
You might surmise there is something a little wrong with the definition of one of these and you are probably right. It's not really that clear that red,yellow,blue deserve to be callled pigment primaries. In colour print making, the combination used is Cyan,Magenta,Yellow (and black) aka CMYK (K is for black).
In this process, the printer lays down little dots of pure ink close to each other, and the mixing is done by the human eye. It's called optical mixing. Artists can do a similar trick.
by anti393hel780 13 years ago
when im online i cant watch show on full screen its just white screen
by fdoleac 6 years ago
Can you recommend good color combinations for real estate website designs? I am hearing yellow is now a popular color.
by frugalisto 11 years ago
How do you turn off Microsoft Excel Full Screen?I'm using the latest version of excel and it is full screen. I cannot see the menu bar.
by \Brenda Scully 14 years ago
if you were to describe yourself what colour would you describe youself as... At the moment i am liking the colour pink though usually i am into blues......... Anyone studied the meaning of colours, it would be interesting i think
by shinujohn2008 15 years ago
Worst Ad Colour Combinations and Adsense image Ads Used At present in Hubs, is causing Lot of Revenue Loss to Hubbers. I have only a Single Question to ask - Will anyone of You click an Ad Like These Below, If You were a Visitor The Basic Page Colour of Hub pages is "White". The...
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