HEX to CMYK Converter

HEX Input
#
Enter 6-digit hexadecimal color code (without #)
CMYK Output
Preview
Cyan
0%
Magenta
100%
Yellow
100%
Black
0%
Color Values
HEX:#FF0000
CMYK:cmyk(0, 100, 100, 0)
RGB:rgb(255, 0, 0)
HSV:hsv(0, 100%, 100%)
Quick HEX Samples
Red
#FF0000
Green
#00FF00
Blue
#0000FF
Yellow
#FFFF00
Magenta
#FF00FF
Cyan
#00FFFF

Understanding HEX to CMYK Conversion

HEX Color Format

HEX color codes are six-digit hexadecimal representations of RGB colors, commonly used in web design and digital graphics. Each pair represents red, green, and blue components.

HEX Structure:
  • #RRGGBB format
  • RR: Red component (00-FF)
  • GG: Green component (00-FF)
  • BB: Blue component (00-FF)

CMYK Printing Model

CMYK (Cyan, Magenta, Yellow, Key/Black) is the standard color model for professional printing. It uses subtractive color mixing with four ink colors.

CMYK Components:
  • Cyan: Blue-green ink (0-100%)
  • Magenta: Red-purple ink (0-100%)
  • Yellow: Yellow ink (0-100%)
  • Key (Black): Black ink (0-100%)

Conversion Process

Converting HEX to CMYK involves multiple steps:

  1. Parse HEX: Extract RGB values from hexadecimal
  2. Normalize RGB: Convert to 0-1 range
  3. Calculate K: K = 1 - max(R, G, B)
  4. Calculate CMY: Apply CMYK formulas
Conversion Formulas:
R = parseInt(hex.substr(0,2), 16) / 255
G = parseInt(hex.substr(2,2), 16) / 255
B = parseInt(hex.substr(4,2), 16) / 255
K = 1 - max(R, G, B)
C = (1 - R - K) / (1 - K)
Web-to-Print Consideration

HEX colors are designed for RGB displays and may not reproduce exactly in CMYK printing. Colors may appear duller or shifted. Always test print samples for critical color matching.

Use Cases

This conversion is essential for:

  • Converting web designs for print
  • Brand color guidelines translation
  • Print production workflows
  • Color specification documentation
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