Why use 12 color channels when three or four are sufficient for fine color discrimination? (science.sciencemag.org)
The gradated digital images are then run through red, green and blue color channels in Adobe Photoshop and further manipulated to make colorfully layered, painterly pictures. (observer.com)
Gauss glasses just add another layer of protection because unless you completely turn off the blue color channel in your monitor it still emits blue light. (digitaltrends.com)