- Red = 255 × ( 1 - Cyan / 100 ) × ( 1 - Black / 100 )
- Green = 255 × ( 1 - Magenta / 100 ) × ( 1 - Black / 100 )
- Blue = 255 × ( 1 - Yellow / 100 ) × ( 1 - Black / 100 )
参考: https://www.ginifab.com/feeds/pms/cmyk_to_rgb.php
参考: https://www.ginifab.com/feeds/pms/cmyk_to_rgb.php