Valid RGB input
Enter red, green and blue as 0–255 values; percentages are also parsed and normalized to integer channels.
RGB to CMYK Converter
Convert RGB used for canvas, pixel data, CSS and graphics APIs into formula-based CMYK percentages without an ICC profile, ready for basic print handoff and ink-percentage references.
Values are converted in the page with local TypeScript functions. No color value needs to be uploaded for this calculation.
1. Enter RGB Values
Choose a color visually, use sliders, or paste a value.
255
99
71
Quick Presets
2. Live preview
cmyk(0%, 61%, 72%, 0%)
tomato
PreviewOriginal
rgb(255, 99, 71)
Lighten 20%
rgb(255, 130, 108)
Darken 20%
rgb(204, 79, 57)
Complementary
rgb(71, 227, 255)
Color Information
Color Name:tomatoBrightness:56%Luminance:0.306Contrast with White:2.95 : 1Contrast with Black:7.13 : 1
Visual Comparison
Aa
With White Text
Aa
With Black Text
3. Results
cmyk(0%, 61%, 72%, 0%)
Other Formats
HEX#FF6347
RGBrgb(255, 99, 71)
RGBArgba(255, 99, 71, 1)
HSLhsl(9, 100%, 64%)
HSLAhsla(9, 100%, 64%, 1)
HSVhsv(9, 72%, 100%)
CMYKcmyk(0%, 61%, 72%, 0%)
Nametomato
Color Palette
Did you know?
You can pick a color from your screen in browsers that support the EyeDropper API.
Direct answer
Convert RGB used for canvas, pixel data, CSS and graphics APIs into formula-based CMYK percentages without an ICC profile, ready for basic print handoff and ink-percentage references. Channel normalization and integer/percentage formatting can make a RGB → CMYK → RGB round trip differ from the starting value.
What this tool does
Convert RGB used for canvas, pixel data, CSS and graphics APIs into formula-based CMYK percentages without an ICC profile, ready for basic print handoff and ink-percentage references. Use this focused route when your source is already RGB and the next system specifically expects CMYK; use the general converter when you need several representations at once.
Verified capabilities
Read the CMYK result
formula-based CMYK percentages without an ICC profile
Check the accuracy boundary
Channel normalization and integer/percentage formatting can make a RGB → CMYK → RGB round trip differ from the starting value. Compare the result with the intended destination before reusing it.
When to use it
- Use this focused route when your source is already RGB and the next system specifically expects CMYK; use the general converter when you need several representations at once.
- Convert RGB used for canvas, pixel data, CSS and graphics APIs into formula-based CMYK percentages without an ICC profile, ready for basic print handoff and ink-percentage references.
- RGB → CMYK: basic print handoff and ink-percentage references.
How to use the tool
Enter the source color
Enter red, green and blue as 0–255 values; percentages are also parsed and normalized to integer channels. In “How to use the tool: Enter the source color”, apply this specifically to RGB to CMYK Converter.
Review the normalized preview
Use the sliders, direct field, preset swatches or system picker when available. The preview exposes normalization before CMYK formatting.
Copy the target value
Copy the CMYK row. Alternate rows stay visible for comparison, but this page's intent remains RGB → CMYK.
Check the accuracy boundary
Channel normalization and integer/percentage formatting can make a RGB → CMYK → RGB round trip differ from the starting value. Compare the result with the intended destination before reusing it. Use the preview to catch a parsing mistake before copying the CMYK row.
Controls explained
Valid RGB input
Enter red, green and blue as 0–255 values; percentages are also parsed and normalized to integer channels. In “Controls explained: Valid RGB input”, apply this specifically to RGB to CMYK Converter.
Read the CMYK result
formula-based CMYK percentages without an ICC profile. CMYK is device-dependent. Printer profile, ink, paper and proofing can all change the final print.
How the result is produced
Enter red, green and blue as 0–255 values; percentages are also parsed and normalized to integer channels. The workbench parses the source to an sRGB triple, then formats formula-based CMYK percentages without an ICC profile. The workbench assumes sRGB-style 0–255 channels and rounds normalized values. CMYK is device-dependent. Printer profile, ink, paper and proofing can all change the final print.
Accuracy and limitations
- Channel normalization and integer/percentage formatting can make a RGB → CMYK → RGB round trip differ from the starting value.
- The workbench assumes sRGB-style 0–255 channels and rounds normalized values.
- CMYK is device-dependent. Printer profile, ink, paper and proofing can all change the final print.
Processing and privacy
Values are converted in the page with local TypeScript functions. No color value needs to be uploaded for this calculation.
Practical tips
- Keep a copy of the original RGB value when comparing rounded CMYK output.
- Use the preview to catch a parsing mistake before copying the CMYK row.
Troubleshooting
Why is my RGB input rejected?
Enter red, green and blue as 0–255 values; percentages are also parsed and normalized to integer channels. In “Troubleshooting: Why is my RGB input rejected?”, apply this specifically to RGB to CMYK Converter.
Why does RGB differ after converting to CMYK and back?
Channel normalization and integer/percentage formatting can make a RGB → CMYK → RGB round trip differ from the starting value. In “Troubleshooting: Why does RGB differ after converting to CMYK and back?”, apply this specifically to RGB to CMYK Converter.
Check the accuracy boundary
Channel normalization and integer/percentage formatting can make a RGB → CMYK → RGB round trip differ from the starting value. Reset the tool and retry with a known supported value before reporting an algorithm error.
Questions about this tool
When should I use the focused RGB to CMYK converter?
Use this focused route when your source is already RGB and the next system specifically expects CMYK; use the general converter when you need several representations at once. In “When should I use the focused RGB to CMYK converter?”, apply this specifically to RGB to CMYK Converter.
Why is my RGB input rejected?
Enter red, green and blue as 0–255 values; percentages are also parsed and normalized to integer channels. In “Why is my RGB input rejected?”, apply this specifically to RGB to CMYK Converter.
Why does RGB differ after converting to CMYK and back?
Channel normalization and integer/percentage formatting can make a RGB → CMYK → RGB round trip differ from the starting value. In “Why does RGB differ after converting to CMYK and back?”, apply this specifically to RGB to CMYK Converter.
Is this result print-ready?
CMYK is device-dependent. Printer profile, ink, paper and proofing can all change the final print. In “Is this result print-ready?”, apply this specifically to RGB to CMYK Converter.
What syntax does the CMYK result use?
formula-based CMYK percentages without an ICC profile. basic print handoff and ink-percentage references. CMYK is device-dependent. Printer profile, ink, paper and proofing can all change the final print.
How is the RGB input normalized before conversion?
Enter red, green and blue as 0–255 values; percentages are also parsed and normalized to integer channels. The workbench assumes sRGB-style 0–255 channels and rounds normalized values.
Continue your color workflow
Use this focused route when your source is already RGB and the next system specifically expects CMYK; use the general converter when you need several representations at once. In “Continue your color workflow”, apply this specifically to RGB to CMYK Converter.
Continue with a related tool
Open the first related route when you need to continue beyond the focused RGB → CMYK conversion.
Color Converter for HEX, RGB, HSL, LAB and OKLCH