Pantone inks are physical substances that reflect light off paper. RGB values are instructions to a screen pixel to emit specific amounts of red, green, and blue light. These two processes are fundamentally different — one subtracts light, the other adds it.
The Pantone Color Institute publishes official RGB approximations for each PMS color. These approximations are calibrated under D50 standard illumination on sRGB displays. Our converter uses these published values, so the RGB output you see here matches the industry-standard digital representation.
Two caveats: (1) metallic and fluorescent Pantone colors have no true RGB equivalent — the screen cannot emit metallic sheen or UV-reactive glow. (2) The same RGB value appears slightly different on an uncalibrated laptop vs. a studio-grade monitor. For mission-critical color work, pair this conversion with a calibrated display and ICC color profile.