PrinterTools

Color Calibration Utilities

CMYK ↔ RGB Color Converter

Convert color values instantly between print (CMYK) and digital screen (RGB) spaces. Get HEX codes and copy results with one click.

CMYK (Print Color Space)

Subtractive Model
60%
40%
40%
100%

RGB (Digital Screen Color Space)

Additive Model
0
0
0

Common Print Color Presets

Converted Output

Note: Monitors display colors in RGB. The preview color block shows the estimated RGB color conversion. Actual print colors may vary depending on printer settings, ink quality, and paper stock.

CMYK vs. RGB: Understanding the Difference

CMYK: Subtractive Printing Model

CMYK stands for Cyan, Magenta, Yellow, and Key (Black). It is a subtractive color model used in color printing. Subtractive colors work by blocking light; as you mix more inks, the page becomes darker, eventually resulting in black.

  • •Used in: Inkjet printers, laser printers, offset commercial presses, flyers, magazines.
  • •Base color: White paper reflection.
  • •Mixing logic: Cyan + Magenta + Yellow + Black = Deep/Rich Black.

RGB: Additive Digital Screen Model

RGB stands for Red, Green, and Blue. It is an additive color model used for digital monitors, phone displays, television screens, and web design. Additive colors work by emitting light; mixing colors together makes the screen brighter, resulting in white.

  • •Used in: Computer monitors, smartphones, cameras, websites, digital photography.
  • •Base color: Black screen display.
  • •Mixing logic: Red + Green + Blue = White light.

Why Do Colors Shift Between Screen and Print?

If you have ever printed a poster or document only to find that the colors look faded, muddy, or different from how they looked on your screen, you have experienced a color gamut shift. Screens are illuminated from behind and have a wider color spectrum (gamut) than printing inks on paper. A neon color in RGB may be impossible to replicate in CMYK inks, forcing the printer software to choose the closest match in a smaller color spectrum.

The Importance of "Rich Black" in Print Design

In print design, using a value of 100% Black (C:0, M:0, Y:0, K:100) often looks gray, dull, or washed out on large surfaces. To get a deep, luxurious black color, printers use a formula called Rich Black. Rich Black combines cyan, magenta, and yellow under-layers beneath the black ink:

  • Pure Black (0, 0, 0, 100): Best for thin body text and barcodes. It prevents misalignment of printheads (ghosting/fringing).
  • Standard Rich Black (60, 40, 40, 100): The most common formula for solid shapes, backgrounds, and thick text. It provides a balanced, solid dark print.
  • Cool Rich Black (60, 50, 30, 100): Adds cyan tint, making the black feel cooler and modern.
  • Warm Rich Black (30, 60, 60, 100): Adds magenta and yellow tint, producing a warmer look suitable for natural layouts.