How to Avoid Blues Turning Purple •  In the printing world, blue is close to purple in the CMYK color spectrum. •  When using equal parts cyan and magenta, it will print purple even though it appears blue on screen. •  The best way to avoid an undesired purple in your printing design is to utilize a small percentage of magenta when a heavy percentage of cyan is used. •  We recommend using 30% more cyan than magenta to avoid turning purple. Example: C-100 M-70 Y-0 K-0