CMYK to RGB Converter

What is CMYK to RGB Converter?

Converts a CMYK (Cyan, Magenta, Yellow, Key/black) print color to its RGB screen equivalent, with a live color swatch so you can see roughly what a print spec will look like on a monitor. Enter the four CMYK percentages and RGB updates instantly. This uses the standard device-independent formula for converting subtractive (print) color to additive (screen) color. It's a useful approximation for previewing a print color digitally, but not a substitute for a proper ICC-profile-based soft proof if exact color accuracy matters. Everything runs entirely in your browser; nothing you enter is sent to a server.

CMYK to RGB Reference Table

How to Use the CMYK to RGB Converter

1. 1

   Enter C, M, Y, and K: Type percentages from 0 to 100 for each channel.

2. 2

   Read the RGB Result Instantly: The RGB values and a live swatch appear automatically.

3. 3

   Copy the Result: Use the copy button to copy the RGB values.

CMYK to RGB Conversion Formula

R = 255 × (1−C) × (1−K), G = 255 × (1−M) × (1−K), B = 255 × (1−Y) × (1−K), where C, M, Y, and K are the entered percentages divided by 100. This is the standard subtractive-to-additive color formula. It scales each channel down first by how much ink that channel subtracts, then by how much black (K) darkens the result further. The same formula underlies CMYK to Hex Converter; that tool just encodes the resulting R/G/B numbers as base-16 digits instead of leaving them as 0–255 values.

How to Convert CMYK to RGB

Worked example: pure cyan, C=100 M=0 Y=0 K=0. R = 255 × (1−1) × (1−0) = 0 G = 255 × (1−0) × (1−0) = 255 B = 255 × (1−0) × (1−0) = 255 Result: RGB(0, 255, 255).