HEX, RGB and CMYK are ways to represent color for different workflows. Copying the right value avoids a common problem: a palette looks consistent on screen but changes when it enters another production environment.
Match the code to the job
HEX is convenient for web CSS and quick digital handoff. RGB values are common in screen-based graphics and many image editors. CMYK is tied to printing, where inks and profiles affect the final appearance. A conversion from an on-screen swatch to CMYK is not a guarantee that paper will match a backlit display.
Keep a single palette record
The NexTools Color Palette tool displays HEX, RGB, HSL and CMYK values for each swatch. Record the source and intended use with the values. If the work will be printed, make a proof or follow the printer's color-profile instructions. For stock vectors, inspect exported colors in the application and format buyers will use.
The most useful code is the one that fits the next step in your workflow. A precise numeric value is helpful, but color consistency also depends on document settings, display conditions and the surrounding colors in the design.
