to get prints' truest color for higher-end printing which color mode should be used?

To get the truest color for higher-end printing, the CMYK color mode should be used. CMYK stands for Cyan, Magenta, Yellow, and Key (Black). This color mode is commonly used in the printing industry because it allows for a wide range of colors to be created by combining different percentages of the four base colors. By using CMYK, you can achieve more accurate and vibrant colors in your prints.