Copag texas holdem has many color versions, like red, black, gold, silver. You would like to know which color is the best to mark invisible ink markings, or to use the luminous ink marker pen to write some marks on it. Experienced poker players would tell that the red color would be the best choice for it. Due to the Copag texas holdem pattern is regular, the black color is also good for printing with the juice ink markings. The last point is that the Copag texas holdem marked cards are not only suitable for the contact lesnes to read but also for the infrared camera system.