CMYK Color Generator
Generate and convert CMYK colors for professional printing. Adjust Cyan, Magenta, Yellow, and Black (Key) values, preview colors, and export print-ready specifications. Perfect for designing print materials, converting digital designs, and ensuring accurate color reproduction.
Quick Presets
CMYK Values
Color Preview
CMYK Value
cmyk(50%, 30%, 20%, 10%)Note: Screen preview shows RGB approximation. Actual printed color may vary.
Color Formats
CMYK
cmyk(50%, 30%, 20%, 10%)RGB
rgb(115, 161, 184)HEX
#73A1B8HSL
hsl(200, 33%, 59%)Export Options
Recommended Settings
CMYK vs RGB Understanding
- •CMYK is a subtractive color model used for printing - colors are created by absorbing light
- •RGB is an additive color model for screens - colors are created by emitting light
- •CMYK has a smaller color gamut than RGB - not all screen colors can be printed accurately
- •Always request a physical proof for critical print projects - screen previews are approximations
- •Professional printers use CMYK values directly, not RGB conversions
Print Design Best Practices
- •Use 'Rich Black' (75C, 68M, 67K, 90K) for true black in large areas, not pure 100K
- •Avoid using pure 100K for text smaller than 12pt - use 0C, 0M, 0Y, 100K instead
- •Total ink coverage should not exceed 300-320% to prevent printing issues
- •Always check with your printer for their specific CMYK specifications and limitations
- •Convert RGB designs to CMYK early in the process to avoid color shift surprises
Pro Tips
- •K stands for 'Key' (the key plate in printing), not 'Black', though it represents black ink
- •CMYK(0, 0, 0, 0) is white (no ink), CMYK(0, 0, 0, 100) is pure black
- •Rich Black creates deeper blacks than pure K by adding CMY colors underneath
- •Screen colors are RGB - export this tool's print specification for accurate printer communication
Most Popular
Rich Black (75%, 68%, 67%, 90%) is the professional standard for deep, saturated blacks in print
When to Use This Tool
Designing brochures, business cards, posters, magazines, or any commercial print materials. Use CMYK values directly to ensure colors print accurately. Export print specifications to share with your commercial printer for exact color matching.
Converting RGB-based designs (from Photoshop, Illustrator, Figma) to print-ready CMYK format. Preview how screen colors will translate to print and adjust values to compensate for color gamut differences before sending to the printer.
Developing brand guidelines for print materials with CMYK specifications. Generate CMYK color palettes that work within printing limitations and export values for consistent use across all print materials and vendors.
Ensuring design files meet commercial printer requirements. Export print specifications with exact CMYK percentages to avoid color mismatches and reprints. Communicate precise color values to printers for accurate reproduction.
Previewing how RGB colors will look when converted to CMYK before finalizing print designs. Identify potential color shifts and adjust designs while still in digital format to save time and money on reprints.
Understanding the difference between additive (RGB) and subtractive (CMYK) color models. Experiment with CMYK values to learn how cyan, magenta, yellow, and black inks combine to create colors in print.
How It Works
Adjust the four CMYK sliders (Cyan, Magenta, Yellow, Black) from 0-100%
Tool converts CMYK to RGB using the formula: R = 255 × (1-C) × (1-K)
RGB values are then converted to HEX and HSL for web compatibility
Color preview shows RGB approximation of CMYK color (actual print may vary)
Copy any format (CMYK, RGB, HEX, HSL) to clipboard with one click
Export as JSON for design systems, CSS for stylesheets, or print spec for printers
Use presets for common print colors or create custom CMYK combinations
Invert colors to find complementary values or randomize for exploration
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by CMYK subtractive color model with mathematical conversion to RGB/HEX/HSL formats for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
What is CMYK and how is it different from RGB?
CMYK (Cyan, Magenta, Yellow, Key/Black) is a subtractive color model used for printing. It works by absorbing light - when all colors are at 100%, you get black. RGB (Red, Green, Blue) is an additive color model for screens that works by emitting light - when all colors are at 100%, you get white. CMYK has a smaller color gamut than RGB, meaning some bright screen colors can't be accurately reproduced in print.
Why do colors look different on my screen vs printed?
Screens use RGB (emitted light) while printers use CMYK (reflected light from ink on paper). This fundamental difference means they can't produce identical colors. Additionally, CMYK has a smaller color gamut - particularly struggles with bright blues, vibrant greens, and neon colors. Your screen's calibration, paper type, and ink quality also affect the final result. Always request a physical proof for critical projects.
What is Rich Black and when should I use it?
Rich Black (typically 75C, 68M, 67K, 90K) is a deep, saturated black created by adding cyan, magenta, and yellow underneath the black ink. Use Rich Black for large solid areas, backgrounds, and design elements where you want the deepest possible black. Use pure 100K for small text and fine details to avoid registration issues (misalignment of color plates).
What does the K stand for in CMYK?
K stands for 'Key', referring to the key plate in four-color printing that aligns the other color plates. While it represents black ink, it's called 'Key' rather than 'Black' to avoid confusion with Blue in other color models. The key plate was traditionally printed first and used to align (key) the cyan, magenta, and yellow plates.
How do I prepare my files for professional printing?
Export your CMYK color specifications using this tool's 'Print Specification' export. Provide exact CMYK percentages to your printer. Always convert your design from RGB to CMYK before finalizing, as colors will shift. Check that total ink coverage doesn't exceed 300-320% (add C+M+Y+K values). Request a physical proof from your printer to verify colors before the full print run.
Can I use these CMYK values in design software?
Yes! The CMYK percentages from this tool can be entered directly into Adobe InDesign, Illustrator, Photoshop, and most professional design software. In Adobe apps, switch to CMYK color mode and enter the C, M, Y, K percentages. Export the JSON or print specification to share exact values with team members or clients.
Why can't CMYK reproduce all RGB colors?
CMYK has a smaller color gamut (range of possible colors) than RGB. CMYK works by absorbing light from white paper using physical inks with inherent limitations. RGB works by emitting light from screens, which can produce more vibrant, saturated colors. Particularly challenging for CMYK are bright blues, electric greens, and neon colors common in digital designs.
Is my color data secure?
Absolutely! All CMYK calculations and conversions happen entirely in your browser using client-side JavaScript. No color values, settings, or specifications are sent to any server. The tool works completely offline after the page loads, ensuring total privacy for your design work.