Standard CMYK printing typically covers 50-60% of Pantone colors due to real-world ink impurities. Adding orange, green, violet, white, or light cyan/magenta extends coverage to roughly 90%+ and enables dark-garment printing, which CMYK alone cannot do. This guide covers what each extra ink solves, the cost and speed trade-offs, and when DTF and UV DTF shops actually need extended gamut printers.