What Does CMYK Stand For?
CMYK stands for Cyan, Magenta, Yellow and Key — "key" being printer's shorthand for the black plate, since it's the plate every other color is keyed, or aligned, to. Unlike the RGB used by screens, CMYK is a subtractive color model built for ink on paper: each ink absorbs certain wavelengths of light instead of emitting them, so mixing more ink makes a color darker rather than brighter.
Cyan
A greenish-blue ink. On its own it absorbs red light, so it reads as a cool, sky-like blue.
Magenta
A vivid pink-red ink that absorbs green light, sitting between red and purple.
Yellow
Absorbs blue light, leaving the warm yellow we associate with sunlight and gold.
Key (Black)
Adds depth and true black. Mixing C+M+Y alone gives a muddy brown, so K keeps shadows crisp and saves ink.
CMYK vs. RGB — what's the difference?
| Aspect | CMYK | RGB |
|---|---|---|
| Used for | Print (business cards, packaging, magazines) | Screens (websites, apps, TVs) |
| Mixing type | Subtractive — starts white, adds ink | Additive — starts black, adds light |
| Channels | Cyan, Magenta, Yellow, Key (black) | Red, Green, Blue |
| Value range | 0–100% per channel | 0–255 per channel |
| All channels at max | Black | White |
CMYK ⇄ RGB / Hex Converter
Enter a value on either side and the other updates instantly — no upload, no sign-up, all calculated in your browser.
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How To Choose Best CMYK Values For Printing?
CMYK colors are used for professional printing. To get the best print quality, your CMYK values must be optimized for production presses before running a job. Selecting the wrong CMYK values can lead to excessive ink coverage, resulting in smeared prints, paper warping, or loss of fine layout detail.
Q: What is CMYK 100, 100, 100, 100, and how should I print black?
Using CMYK 100, 100, 100, 100 (known as Registration Black) is a critical printing mistake. If you use this value, the printer applies 400% total ink coverage, which oversaturates the paper, causes the ink to smear, and ruins fine details.
For professional print results, use these two industry-standard black formulas instead:
For Large Black Areas (Rich Black):
If you need a deep, premium black for large design elements (like solid backgrounds, large headers, or packaging blocks), use this blend to keep your ink levels safe and dry:
Cyan: 70% | Magenta: 50% | Yellow: 30% | Black (K): 100%
For Fine Text & Details (True Black - Under 12px):
For small body copy, footnotes, or ultra-thin lines, use a single-ink formula. This prevents blurry color halos caused by tiny shifts in the printing press, keeping your text perfectly crisp and sharp:
Cyan: 0% | Magenta: 0% | Yellow: 0% | Black (K): 100%
What is 0 0 0 90 in CMYK?
In printing, the CMYK value 0, 0, 0, 90 is used to achieve a clean, neutral dark gray. This specific value represents a rich, deep charcoal gray equivalent to Hex Code: #262626.
What is 0 0 100 0 in CMYK?
This value yields 100% pure yellow (equivalent to Hex Code: #FFFF00) because it uses:
Cyan: 0% | Magenta: 0% | Yellow: 100% | Black (K): 0%.
How to get Red in CMYK?
CMYK colors use a subtractive physical ink mixing process. To get a vivid, pure red in CMYK, use the following mix:
Cyan: 0% | Magenta: 100% | Yellow: 100% | Black: 0%.
Adjusting Red Shades: Depending on your design requirements, you can adjust your mix ratios to achieve different shades of red:
- Bright Red:
C: 0 | M: 100 | Y: 95 | K: 0 - Scarlet:
C: 0 | M: 86 | Y: 89 | K: 15 - Dark Red:
C: 0 | M: 100 | Y: 100 | K: 4 - Soft / Muted Red:
C: 0 | M: 63 | Y: 59 | K: 18 - Red Berry:
C: 0 | M: 100 | Y: 100 | K: 43
Use these customized values to target different color styles using our interactive CMYK Color Chart (104 COLORS) or the instant CMYK ⇄ RGB / Hex Converter featured on this page.
The Full CMYK Color Chart
Popular CMYK Color Codes for Print
From print-safe basics to premium branding shades, these are the CMYK codes designers reach for most — each paired with its RGB and HEX equivalent. Click any value to copy it straight to your clipboard.
| Color Name | CMYK Values | RGB Code | HEX Code |
|---|---|---|---|
| Pure Black | C: 0 | M: 0 | Y: 0 | K: 100 | rgb(0, 0, 0) |
#000000 |
| Rich Black | C: 75 | M: 68 | Y: 67 | K: 90 | rgb(4, 10, 15) |
#040a0f |
| Pure White | C: 0 | M: 0 | Y: 0 | K: 0 | rgb(255, 255, 255) |
#FFFFFF |
| Process Blue | C: 100 | M: 15 | Y: 0 | K: 0 | rgb(0, 163, 224) |
#00A3E0 |
| Navy Blue | C: 100 | M: 50 | Y: 0 | K: 65 | rgb(0, 45, 98) |
#002D62 |
| Pure Red | C: 0 | M: 100 | Y: 100 | K: 0 | rgb(254, 0, 0) |
#FE0000 |
| Emerald Green | C: 100 | M: 0 | Y: 100 | K: 10 | rgb(0, 168, 119) |
#00A877 |
| Vibrant Orange | C: 0 | M: 70 | Y: 100 | K: 0 | rgb(255, 102, 0) |
#FF6600 |
| Pure Yellow | C: 0 | M: 0 | Y: 100 | K: 0 | rgb(255, 255, 0) |
#FFFF00 |
| Premium & most-searched shades | |||
| Cool Gray | C: 0 | M: 0 | Y: 0 | K: 40 | rgb(167, 169, 172) |
#A7A9AC |
| Warm Red | C: 0 | M: 86 | Y: 80 | K: 0 | rgb(245, 81, 61) |
#F5513D |
| Royal Blue | C: 100 | M: 80 | Y: 0 | K: 0 | rgb(0, 71, 171) |
#0047AB |
| Forest Green | C: 80 | M: 0 | Y: 80 | K: 40 | rgb(31, 102, 53) |
#1F6635 |
| Gold / Yellow-Gold | C: 0 | M: 20 | Y: 100 | K: 0 | rgb(255, 204, 0) |
#FFCC00 |
| Process Magenta | C: 0 | M: 100 | Y: 0 | K: 0 | rgb(236, 0, 140) |
#EC008C |
| Process Cyan | C: 100 | M: 0 | Y: 0 | K: 0 | rgb(0, 174, 239) |
#00AEEF |
| Metallic Silver | C: 0 | M: 0 | Y: 0 | K: 15 | rgb(212, 212, 212) |
#D4D4D4 |
| Chocolate Brown | C: 20 | M: 60 | Y: 100 | K: 40 | rgb(122, 61, 0) |
#7A3D00 |
Tap or click any CMYK, RGB, or HEX value above to copy it.
CMYK Frequently Asked Questions
What does CMYK stand for?
CMYK stands for Cyan, Magenta, Yellow and Key. "Key" refers to the key plate — historically the black printing plate that all other ink colors were keyed, or lined up, to — so in everyday use "Key" just means black.
What is the CMYK color model used for?
CMYK is the standard color model for professional and home printing — magazines, packaging, business cards, and any job that mixes physical ink on paper rather than displaying light on a screen.
How is CMYK different from RGB?
RGB is additive and used for digital screens: red, green and blue light combine to make white. CMYK is subtractive and used for print: cyan, magenta, yellow and black ink combine to absorb light, making white paper appear black. That's why a color can look slightly different on screen versus printed on paper.
Can I convert CMYK to Pantone accurately?
Only approximately. Pantone (PMS) colors are pre-mixed spot inks, while CMYK is calculated from four process inks, so a converted value is a close visual match rather than an exact one. For brand-critical work, confirm the official Pantone reference with your printer.
Why do my printed colors look different from my screen?
Screens emit RGB light while printers lay down CMYK ink, and the two color models don't cover an identical range of colors (their "gamut"). Paper stock, ink quality and your monitor's calibration all add further variation, which is why proofing a physical print is always the safest final check.
How do I convert RGB or Hex to CMYK?
Use the free converter above this section — enter a Hex code, an RGB value, or pick a color visually, and the matching CMYK percentages (and vice versa) are calculated instantly in your browser.
What does a CMYK value of 0 mean?
A CMYK value of 0 across all channels (0, 0, 0, 0) represents pure white, which signifies the complete absence of ink on a white paper substrate. In individual channels, 0 means no ink is applied for that specific color.
What color is CMYK 100 100 0 0?
CMYK (100, 100, 0, 0) is a vibrant, deep Blue or Violet-Blue. It is created by mixing 100% Cyan and 100% Magenta, with 0% Yellow and 0% Black.