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What exactly are the color mixing rules?
chirchri
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in Color Mixing
We know that
red and blue make purple...
yellow and blue make green...
red and yellow make orange..
Yet this schemata doesn't work for frequencies of light.
Mixing blue light and green light makes yellow light.
Mix every color light together and one gets white light.
How is this possible? What exactly are the color mixing rules and how do they work?
Comments
So Red paint looks red because it subtracts/absorbs all the other colors apart from RED from the light falling on it,hence is called subtractive as pigment only reflects red(theoretically) wavelength absorbing all the other wavelengths.On the other hand red light looks red light because it emits/adds the red light.
So because of their nature of manipulating light differently, mixing the primaries of both produce different results.For e.g. if we add three primaries of red,blue and yellow in oil paint,each paint will absorb the light reflected by the other paint(red will absorb blue and yellow,yellow will absorb red and blue and blue will absorb yellow and red) so the resultant mixture does not have any color hence looks black.In case of additive mixing,if we add lights of three primaries,all the wavelengths combine to form a white light.Hope it helps
It's quite technical but very interesting:
http://www.handprint.com/LS/CVS/color.html