quote:
The Bible mentions five colors in Hebrew: red (adom), Yellow (tzahov), green (yerakon), blue (tchelet) and magenta (argaman). One curious observation is immediately apparent, in that this list not only includes the primary colors - red, yellow and blue but it also includes the only two other colors green and magenta that are necessary to produce the complete color palate for four color printing.
"red yellow and blue are the primary colors" is something they teach you in elementary art specials, sure. but it's not right. there are two sets of primary colors, depending on whether we are dealing in subtractive color (such as paint of ink) or additive color (such as light). "subtractive" is subtractive because it absorbs particular colors of light, and what we see is the remaining the reflected light. so if this statement were anywhere close to accurate, we'd need
six colors.
additive media, such as the monitor you're reading this on, use RED, GREEN, and BLUE as their primary colors. every color can be made from those three. surely anyone who's used photoshop is somewhat familiar with RGB.
the inverse of that spectrum is subtractive, CYAN, MAGENTA, and YELLOW. yellow is opposite blue, cyan opposite red, magenta opposite green. these are the three colors that four color offset printing uses. the fourth color, the K and CMYK, is black. this is because while it's possible to make a really nice white in additive by combining the three primaries, doing the same in subtractive doesn't net a particularly deep black.
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