Our digital printers build color from CMYK. That covers an enormous range, and on a difficult brand color we will tune the printer’s color settings to land remarkably close rather than shrugging and printing whatever comes out of the file. Garment color plays into it too: the same ink reads differently on white cotton than it does on a dark blank.
True neon is the one we cannot fake. Fluorescent color lives outside what four inks can mix, so when a job needs real neon we move it to screen printing, where we mix Pantone colors with fluorescent additives on the bench. Reflective, metallic, and puff finishes are the same story - those are modified inks, not printed images, so they belong on the press rather than the printer.
We would rather route your job to the right machine than sell you the wrong one. If your artwork leans on a color we should talk about, say so early and we will tell you straight which method gets you there. The full breakdown of that trade-off lives in our digital printing cost guide and our screen printing cost guide.