CMYK to HEX Conversion Formula
Converting print colors (CMYK) to web colors (HEX) is a two-step mathematical process. Since CMYK is subtractive (ink) and HEX is additive (light), we first calculate the RGB values and then translate them into a hexadecimal string.
G = 255 × (1 - M') × (1 - K')
B = 255 × (1 - Y') × (1 - K')
Note: This mathematical conversion assumes a generic color profile. For professional printing, you should always consult physical Pantone books as screen representations are only approximations.
Why Convert CMYK to HEX?
Graphic designers often work in two parallel worlds. CMYK (Cyan, Magenta, Yellow, Key) is used for physical media like business cards, brochures, and billboards. HEX (Hexadecimal) is the standard for screens, websites, and digital apps.
A common workflow involves taking a print-ready logo and creating a "Web Version" for a site. Using a dedicated CMYK to HEX Converter ensures that the brand identity remains consistent across mediums, even though screens can display much brighter "neon" colors than ink on paper.
Common CMYK Color Chart
Here are standard values for popular print colors converted to web-safe HEX codes.
| Color Name | CMYK (Print) | HEX (Web) | Preview |
|---|---|---|---|
| Rich Black | 60, 40, 40, 100 | #000000 |
|
| True Red | 0, 100, 100, 0 | #FF0000 |
|
| Royal Blue | 100, 75, 0, 0 | #0040FF |
|
| Safety Yellow | 0, 0, 100, 0 | #FFFF00 |
|
Frequently Asked Questions
Does converting CMYK to HEX lose quality?
Converting from print (CMYK) to screen (HEX) is usually fine, but going the other way is risky. Our CMYK to HEX Converter provides a "close enough" web approximation, but physical ink cannot replicate the bright neon colors that screens (RGB/HEX) can display.
Why do Color Converters result in different blacks?
In printing, "Rich Black" (mixed inks) is darker than "Flat Black" (only K scales). A CMYK to HEX Converter maps both to `#000000` (Pure Black) on the web, though specialized print tools differentiate them.
Can I use CMYK for web images?
No. Browsers are built for RGB. If you upload a CMYK JPEG, colors often look inverted or washed out. Use our CMYK to HEX Converter or image editing software to convert files to sRGB before uploading.
Why does the result change between similar tools?
CMYK is "device dependent," meaning the color depends on the specific paper and printer profile (e.g., SWOP vs. Euroscale). Simple online CMYK to HEX Converters use a generic profile for standard conversions.