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Provider and controller
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NIE: Y4291153B
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Terms
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Cookie: Small text file that is stored in the browser.
Controller: The person or body that decides on the purposes and means of data processing.
First enter the color code to find the conversion and the best matching colors. After that, you can create palettes by clicking on and download color samples.
If you want to prepare digital colors for printing, you need to convert from RGB to CMYK. The three light colors red, green, and blue are translated into the four print colors cyan, magenta, yellow, and key (black). While RGB is optimized for monitors, displays, and web content, CMYK is the standard color system for printing processes.
Converting RGB to CMYK ensures that digital colors are accurately reproduced on paper. qConv automatically converts your RGB values and provides the corresponding CMYK percentages — ideal for print files, brochures, packaging, or corporate designs.
Since RGB is additive (light-based) and CMYK is subtractive (ink-based), converting from RGB to CMYK can result in slight color shifts. qConv displays the exact CMYK values and LAB comparison to help minimize color loss.
How does the conversion work?
In the conversion from RGB to CMYK, the light values of red, green, and blue are converted into ink percentages using these formulas:
Black = 1 − max(R, G, B)
Cyan = (1 − R − Black) / (1 − Black)
Magenta = (1 − G − Black) / (1 − Black)
Yellow = (1 − B − Black) / (1 − Black)
The result shows the color proportions in the format cmyk(C%, M%, Y%, K%). qConv performs this RGB to CMYK conversion automatically, applying rounding to keep your print colors as close as possible to the original tone.
An RGB value like rgb(255, 0, 0) (pure red) equals cmyk(0%, 100%, 100%, 0%). qConv displays this result instantly and also provides related systems such as HEX, LAB, or HSL.
Example & application
Example: The RGB value rgb(102, 153, 255) represents a vivid blue. After the conversion from RGB to CMYK, the result is approximately cmyk(60%, 40%, 0%, 0%). qConv calculates this value precisely and visualizes possible print deviations.
Converting RGB to CMYK is essential for graphic designers, print shops, and branding agencies who need to bring digital colors into high-quality print results. qConv simplifies the process by providing exact values, calculating differences, and suggesting matching Pantone or RAL alternatives if needed.
Tip: Always use the RGB→CMYK conversion before exporting print data to ensure your colors match perfectly across screens, proofs, and print presses.
* Note:
qConv.com searches for the next matching color from the selected color palette. In most cases, there will be minimal or apparent color differences because there is not an exact match for every color.
The RGB color model (Red, Green, Blue) is the foundation of digital color representation — from monitors and smartphones to LED lighting. It is based on additive color mixing: when all three primary colors are combined at maximum intensity, white is produced; when no light is emitted, the result is black.
Each of the three color components can take a value between 0 and 255, resulting in a total of 16,777,216 possible RGB colors that the human eye can perceive on modern displays. RGB is therefore the standard format for digital media and the basis of many color conversions, such as to HEX or CMYK.
Usage
RGB is used in all digital applications — from web design, UI/UX design and app development to video, animation, and 3D graphics. It defines color representation on light-based devices and forms the foundation of every screen display.
Design tools like Adobe Photoshop, Figma, or Sketch rely on RGB color values to define precise web colors that can later be converted into HEX or HSL formats. RGB is also the reference for modern color profiles like sRGB, Adobe RGB, or Display P3, which represent different gamuts for various display types.
Tips for Designers & Agencies
To ensure consistent appearance across devices, designers should always work with standardized profiles such as sRGB. Colors may appear slightly different on mobile devices, laptops, and monitors due to varying light output.
With qConv, you can easily convert any RGB value into print-ready CMYK or Pantone® tones. It precisely bridges the gap between digital and print color spaces while offering related harmonies, contrasts, and shades for creative exploration.
The CMYK color model (Cyan, Magenta, Yellow, Key/Black) is the standard color space for professional four-color printing. It describes how colors are created by mixing printing inks on physical material - usually paper. In contrast to RGB, which adds light colors, CMYK works subtractively: the more color is applied, the less light is reflected - and the darker the result appears.
Each of the four colors can have a value between 0% and 100%. A high percentage value stands for high color coverage in the print. By combining these values, several trillion CMYK color tones can be generated - however, the displayable color gamut is lower than that of RGB, which is why conversions can lead to visible color deviations.
Use
The CMYK color system is the industry standard in printing - from magazines, catalogs and packaging to corporate designs. Every professional print shop works with CMYK color profiles (e.g. ISO Coated v2, FOGRA39) to ensure consistent and accurate color results. Designers should therefore convert their RGB or HEX colors to CMYK before approving them for printing in order to minimize colour deviations.
In digital design programs such as Adobe Photoshop, Illustrator or Affinity Designer, the CMYK color space can be selected directly as a working profile. This allows printing colors to be simulated exactly and checked visually at an early stage.
Tips for designers & agencies
When converting screen colors (RGB/HEX) to CMYK, note that particularly bright blue, green and neon tones appear duller in print. A soft proof preview helps to assess the color appearance. For corporate designs, use CMYK color values from verified brand guidelines or Pantone references to achieve consistent print results.
When working with qConv, you can convert any digital color to exact CMYK values in seconds, compare color deviations and even generate matching alternative palettes.