<Li> Text is typically printed in black and includes fine detail (such as serifs), so to reproduce text or other finely detailed outlines, without slight blurring, using three inks would require impractically accurate registration . </Li> <Li> A combination of 100% cyan, magenta, and yellow inks soaks the paper with ink, making it slower to dry, causing bleeding, or (especially on cheap paper such as newsprint) weakening the paper so much that it tears . </Li> <Li> Although a combination of 100% cyan, magenta, and yellow inks should, in theory, completely absorb the entire visible spectrum of light and produce a perfect black, practical inks fall short of their ideal characteristics and the result is actually a dark muddy color that does not quite appear black . Adding black ink absorbs more light and yields much better blacks . </Li> <Li> Using black ink is less expensive than using the corresponding amounts of colored inks . </Li>

What are cyan magenta and yellow considered to be