Color models provide a structured way to represent colors numerically. Two dominant models exist: RGB for light-emitting devices (monitors, cameras, scanners) and CMYK for light-absorbing media (inkjet printers, offset presses). A common source of error is designing in RGB but printing in CMYK without conversion, leading to unexpected color shifts.
| Feature | RGB | CMYK | |---------|-----|------| | Color mixing | Additive (light) | Subtractive (ink) | | Primary colors | Red, Green, Blue | Cyan, Magenta, Yellow, Black | | White point | Max of all colors | No ink (paper color) | | Black point | Min of all colors | Max of all inks (or K only) | | Typical bit depth | 24-bit (16.7M colors) | 32-bit (but fewer reproducible colors) | | Primary use | Screens, digital | Printing, physical media | rgb a cmyk
RGB and CMYK serve complementary but incompatible roles. RGB is optimized for the dynamic, emissive nature of displays, while CMYK is tailored to the reflective, subtractive reality of inks and paper. Successful cross-media color management requires awareness of gamut limitations, proper conversion workflows, and the use of color profiles (ICC). Failure to account for these differences results in dull, shifted, or inaccurate printed colors compared to what was seen on screen. Color models provide a structured way to represent
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