RGB to CMYK Converter
Convert Red, Green, Blue colors to Cyan, Magenta, Yellow, Black format for print.
Image Color Picker
Drag & Drop SupportDrop an image here or click to upload
Extract print colors directly from any photo
Understanding RGB to CMYK Conversion
RGB and CMYK are two different color models used in design. RGB (Red, Green, Blue) is additive, designed for electronic displays like monitors and smartphones. CMYK (Cyan, Magenta, Yellow, Key/Black) is subtractive, designed specifically for color printing.
Print Ready
Get accurate CMYK percentages for professional printing. Ensure your digital designs look great on paper.
Color Picking
Upload any image to extract CMYK values from specific pixels. Perfect for matching colors from photos.
Real-time Logic
Our tool uses high-precision formulas to ensure the most accurate conversion between color spaces.
The Conversion Formula
To convert RGB to CMYK, we first normalize the RGB values to a range of 0-1:
- R' = R / 255
- G' = G / 255
- B' = B / 255
Then we calculate the Black (K) value:
K = 1 - max(R', G', B')
Finally, we calculate Cyan (C), Magenta (M), and Yellow (Y):
- C = (1 - R' - K) / (1 - K)
- M = (1 - G' - K) / (1 - K)
- Y = (1 - B' - K) / (1 - K)