When printing the designed one it is not RGBCMYKIt is common to use a color model, but use four initials of CMYK instead of Heart, Spade, Clover, Diamonds, so that you can distinguish at a glance by ...

Even if there are various patterns, there are many same things written, but instead of numbers or patterns, it is better to distinguish cards at CMYK model color density instead of "CMYK Playing Cards ...

For the CMYK color scheme, color specifications must be enclosed in quotation marks. For all other color schemes, the quotes are optional. You can freely intermix color-naming schemes in your programs ...