❓ FAQ
What is the difference between CMYK and RGB?
CMYK is a subtractive color model used for printing (Cyan, Magenta, Yellow, Key/Black), where ink absorbs light to produce colors. RGB is an additive color model used for screens (Red, Green, Blue), where light is combined to produce colors. CMYK values range 0-100%, RGB values range 0-255.
Why do CMYK colors look more vibrant after converting to RGB?
RGB has a wider color gamut than CMYK, meaning screens can display more vibrant colors. When converting from CMYK to RGB, colors that cannot be reproduced in print appear more vivid on screen. However, these vibrant colors may not be reproducible in actual printing.
Is my color data uploaded to any server?
No. All color conversion calculations are performed entirely in your browser. No data is sent to any server. Your color data stays on your device and is completely private.
What is the CMYK to RGB conversion formula?
The standard formula is: R = 255 × (1-C) × (1-K), G = 255 × (1-M) × (1-K), B = 255 × (1-Y) × (1-K), where C/M/Y/K are decimal values from 0 to 1. This is a simplified theoretical conversion; actual printing requires ICC color profiles.
How can I ensure print colors match screen display?
For accurate color matching, use ICC color profiles for color management. This tool provides theoretical conversion values. For professional printing, use color management software (like Adobe Photoshop) with calibrated monitors and your printer's ICC profiles.