Should I work in RGB or CMYK for print
For most purposes, and most users, working in RGB should produce the best results. If you want to embed or assign a profile to your file(s) we recommend Adobe RGB 1998. Conventional wisdom holds that you work in RGB for screen-based work, and CMYK for work that will be printed.
Does CMYK look brighter when printed
Unlike a screen image the brightness of a colour is created by adding additional ink to a solid white substrate rather than changing the intensity of light shining through a pixel. This means a CMYK print can only ever be as bright as the paper it is printed on.
Why does RGB look better than CMYK
Because the RGB scheme has a greater range of colors, CMYK cannot produce brighter colors. These hues are beyond the CMYK range and will come out darker and more dull when printed than what you see on your display.
Why is CMYK lighter than RGB
CMYK uses subtractive colors, not additive. Adding colors together in CMYK mode has the opposite effect on the result as RGB does; the more color added, the darker the results. Therefore, colors are taken away, or subtracted, to create a light result.
Why is CMYK not as bright as RGB
Because the RGB scheme has a greater range of colors, CMYK cannot produce brighter colors. These hues are beyond the CMYK range and will come out darker and more dull when printed than what you see on your display.
Why is CMYK so dark
Cmyk is subtractive coloration: cyan, magenta, yellow and black inks absorb light, producing a printed image that requires an external light source. A cymk image is always darker than the illuminating light source.
Can you get bright colours in CMYK
The most brilliant colors achievable using CMYK are solids. First, 100% of cyan, magenta, and yellow will appear as the most colorful colors available in print. Again, these colors will not come out as bright as they appear onscreen. RGB color model has many more shades available than CMYK.
Is CMYK reflected light
CMYK (Cyan, Magenta, Yellow and Black) is a subtractive color model. If we print cyan, magenta, and yellow inks on white paper, they absorb the light shining on the page. Since our eyes receive no reflected light from the paper, we perceive black.