The K in CMYK can can stand for either blacK or Key colour.
The "K" in CMYK stands for key since in four-color printing cyan, magenta, and yellow printing plates are carefully keyed or aligned with the key of the black.
Suggesting that the "K" in CMYK comes from the last letter in "black" and was chosen because B already means is incorrect.
Courtesy of Wikipedia;
http://en.wikipedia.org/wiki/CMYK_color_model
K is used to represent Black in CMYK because B is already used for Blue in RGB.
CMYK stands for- C= Cyan, M=Magenta, Y=Yellow, K=Black
C = Cyan M = Magenta Y = Yellow K = Key
cmyk color c=100 m=72 y=0 k=30
sepia cmyk 0%, 60%, 81%, 63%
K is used to represent Black in CMYK because B is already used for Blue in RGB.
Cyan, magenta, yellow, and key (black)
CMYK stands for- C= Cyan, M=Magenta, Y=Yellow, K=Black
C = Cyan M = Magenta Y = Yellow K = Key
cmyk color c=100 m=72 y=0 k=30
cmyk color c=100 m=72 y=0 k=30
C-37 m-36 y-61 k-4
It's Pantone 363U and its variants on CMYK or JPEG.
PC = process coated ec = euro coated
sepia cmyk 0%, 60%, 81%, 63%
The CMYK values for Pantone 10127 C are approximately C: 0, M: 0, Y: 8, K: 0. This translates to a very light yellow shade. However, for precise printing results, it's always best to refer to a Pantone color guide or consult with a printing professional.
CMYK - EP - was created on 2010-05-28.