Good to know
RGB is for screens. CMYK is for print.
This converter uses the standard mathematical RGB ↔ CMYK formula. It is useful for quick values, artwork setup and printer conversations.
Free · No sign-up · PrivateColour & Accessibility
RGB → CMYK Converter.
Turn HEX or RGB colour values into CMYK percentages for quick print prep — without opening Photoshop.
1 Enter colour2 Convert3 Copy values
RGB / HEX
CMYK
Converted colour
C 0% · M 85.2% · Y 50.6% · K 4.7%
RGB 243, 36, 120 · #F32478
Print reality check
This is a standard mathematical conversion.
It is useful for quick print-prep values, but it is not an ICC-profile conversion or a contract proof. Commercial printers may ask for a specific profile such as FOGRA, GRACoL or SWOP depending on press, paper and region.
If your printer supplies an ICC profile, use that profile in a colour-managed app for the final production conversion. OutMonkey does not pretend a browser RGB swatch can reproduce press output exactly.
For final press colour
Use the printer's profile when they give you one.
ICC profiles account for a specific press, ink and paper condition. A browser conversion cannot replace a colour-managed proof.
Before you finish
A quick check makes a better result.
OutMonkey is built to be simple enough for someone doing this once and useful enough for someone who does it every day.
What this tool is for
this result
Use this tool for one focused job without opening a full application. The aim is a useful result without making you learn a full piece of software first.
Good to know
Do the small job, then move on.
Open or inspect the result once before you send it. Make sure the thing you wanted changed is actually changed and nothing else important was lost.
If the result is for someone else, open it once as they would see it. That simple check catches a surprising number of tiny mistakes.
In plain English
You do not need to be an expert.
These tools are meant for normal people as much as designers or developers. You should not need to know the technical name of a task before you can finish it.