Validate the input
Use the format shown in the example and keep channel values inside their normal ranges. Invalid or incomplete values cannot describe a reproducible color.
FREE COLOR CONVERTER
CMYK to RGB.
Translate cyan, magenta, yellow, and black print percentages into red, green, and blue screen-light channels—instantly, privately, and without a signup.
Try 100, 21, 0, 16
Converted value 0, 65, 79, 0
Screen-to-print conversions are estimates. Profiles, paper and ink change the final result.
HOW IT WORKS
A fast mathematical conversion.
The tool first normalizes your CMYK input to sRGB, then calculates its RGB representation. It rounds values to make them practical to copy into design software and style sheets. Everything runs locally in the browser.
Important for print: This is a profile-free conversion. Your print provider may produce different CMYK values after applying the correct output profile for their paper and press.
Understand the context
Screen models describe emitted light. Process-print values describe ink amounts under a printing condition. The numbers may be related without being interchangeable.
Keep the original
Save the source value with the conversion. That makes later profile changes, corrections, and production handoffs easier to audit.
CMYK and RGB, explained
CMYK
CMYK describes process-print percentages, but the numbers only become press-specific when paired with an ICC profile, ink set, paper, and printing condition. The browser calculation here is a useful generic estimate, not a press separation.
RGB
RGB describes emitted screen light with red, green, and blue channels. This tool expects values from 0 to 255 and interprets them as standard sRGB, the common default for browsers and general digital artwork.
What happens during this conversion?
CMYK represents cyan, magenta, yellow, and black print percentages, while RGB represents red, green, and blue screen-light channels. The calculator uses a standard mathematical path through sRGB. It does not read an embedded document profile, modify an uploaded file, or apply a printer-specific separation. That makes the answer predictable for everyday design work, but deliberately generic for production printing.
Some colors sit outside the range of another model or output device. Rounding can also make a converted value look slightly different when it is converted back. Treat the displayed result as a clean starting point, then test it in the software, profile, and medium that will actually be used.
A practical color-conversion workflow
- Identify the source space.Do not assume unlabeled numbers are RGB, HSL, or CMYK.
- Enter and copy the result.Keep the source and destination values together in the project notes.
- Preview in the target context.Check the value in the browser, design document, or layout where it will appear.
- Apply the correct profile for print.Ask the printer for the intended ICC profile and total-ink requirements.
- Proof important work.A calibrated monitor helps, but a contract proof or press sample answers the production question.
Frequently asked questions
How do I convert CMYK to RGB?
Enter a valid CMYK value in the converter. The equivalent RGB reference updates immediately and can be copied with one click.
Is this conversion exact for professional printing?
No generic screen-to-print conversion is universally exact. For production-critical work, use the printer’s ICC profile and approve a physical proof.
Does my color data leave the browser?
No. This converter runs locally in your browser and does not upload the color you enter.
Why does another converter give different values?
Converters may use different color profiles, white points, rounding rules, or formulas. CMYK in particular depends on the intended printing condition.
Will converting back return the original value?
Not always. Rounding, gamut limits, and the many-to-one relationship between some color models can change a round trip by a small amount.