Hewlett-Packard QMS 1660 Manual

A SERVICE OF

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Any color can be reproduced by using some combination of CMYK. If

you have defined the following CMYK values for the color brown in

your application, the NTSC equation that follows shows you how the

percentage of grayscale for the color is derived.

CMYK Value

C (96)

M (128)

Y (224)

K (0)

[(96*0.3) + (128*0.59) + (224*0.11) + 0] ÷ 255 = [(28.80) + (75.52) + (24.64) + 0] ÷ 255 = 50%