Quality control: See âquality assurance/quality control.â Quality costs: See âcost of poor quality.â Quality engineering: The analysis of a manufacturing system at all stages to maximize the quality of the process itself and the products it produces.
I read somewhere that there are over 16 million different colors. 16 million is an estimate of how many different colors a 24 bit RGB computer monitor can simulate. This has no relevance to how many different colors the human eye can distinguish. Just as there are infinitely many numbers between 380 and 740 - including all of the fractions, of course - so there are infinitely many wavelengths between 380 and 740 nanometers - the visible spectrum of light. That doesn't even count the different tints and shades obtained by mixing in white, black, etc.
The Color Wheel: The Color Wheel shows the relationships between the colors. The three primary colors are red, yellow, and blue; they are the only colors that cannot be made by mixing two other colors. The three secondary colors are green, orange, and violet; they are each a mixture of two primary colors. Their hue is halfway between the two primary colors that were used to mix them.