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CMYK to RGB Converter

Enter CMYK percentages to get the RGB and HEX values for screens.

CMYK values (0–100 %)
RGB
rgb(31, 143, 255)
ValuesR, G, B
31, 143, 255
HEX
#1F8FFF

Converting back? Use the RGB to CMYK converter.

Approximation: this uses the standard formula without an ICC color profile. Real print results depend on the printer, inks and paper — for professional print, convert with the profile your print shop specifies.

How to convert CMYK to RGB

  1. Enter cyan, magenta, yellow and black as percentages from 0 to 100.
  2. The RGB and HEX values and a preview update as you type.
  3. Copy rgb() or HEX for CSS, design tools or presentations.

Screen results are an approximation

CMYK values say how much ink to print, not exactly which color appears — that depends on the ink set, paper and ICC profile. Without a profile, the standard formula gives a good on-screen approximation, but a brand color defined in CMYK may look slightly different on screen than on paper. If a brand guide lists official RGB or HEX values, use those for the web.

The formula (C, M, Y and K as 0–1)
R = 255 × (1 − C) × (1 − K)
G = 255 × (1 − M) × (1 − K)
B = 255 × (1 − Y) × (1 − K)

CMYK to RGB examples

CMYK values and their approximate screen colors
SwatchHEXCMYKRGB
#FFFFFF0%, 0%, 0%, 0%rgb(255, 255, 255)
#0000000%, 0%, 0%, 100%rgb(0, 0, 0)
#00FFFF100%, 0%, 0%, 0%rgb(0, 255, 255)
#FF00FF0%, 100%, 0%, 0%rgb(255, 0, 255)
#FFFF000%, 0%, 100%, 0%rgb(255, 255, 0)
#FF00000%, 100%, 100%, 0%rgb(255, 0, 0)
#0000FF100%, 100%, 0%, 0%rgb(0, 0, 255)
#8080800%, 0%, 0%, 50%rgb(128, 128, 128)

Related color tools

Convert back with RGB to CMYK, get RGB values from a HEX code with HEX to RGB, or check the result for readability in the contrast checker.

Frequently asked questions

What formula does the converter use?
R = 255 × (1 − C) × (1 − K), and the same for G with M and B with Y, with the percentages written as 0–1. 0 % of every ink gives white; 100 % K gives black.
Why doesn't the result match my printed sample?
CMYK values describe amounts of ink, not an exact color. How they look depends on the ink set, paper and ICC profile. Without that profile, the conversion is an approximation.
Can I get the HEX code for a CMYK color?
Yes. The converter shows the RGB values and the matching HEX code, ready to paste into CSS.

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