![]() This is why it’s important to ensure that you’re using an appropriate color profile for the type of work you’re doing. Otherwise, they’ll just make the spot conversion on their end, and the resulting document will not look the same in print as it did on your screen. Often times a print shop will reject your uploaded document if it has an RGB color profile embedded. ![]() Printing a document with an RGB color profile often results in the colors appearing faded and muddy: Source: The following chart illustrates the difference in color choice between the two color models: Source: If you’re using an RGB color profile, then it’s possible that you will be using colors that are outside of the range (or “out of gamut”) of what can be produced with ink. Whenever you’re designing something for print, it’s important to ensure that you are using a CMYK color profile. In order to work within the CMYK color space in Photoshop, you’ll have to manually choose your color mode in the Color Mode submenu within the New Document menu: To avoid having to switch RGB to CMYK in Photoshop, it is recommended that you choose a CMYK color profile from the start when opening a new document. This makes for a smaller gamut to sample from than its RGB counterpart.ĬMYK color profiles are primarily used when designing anything that will be printed using ink. Unlike RGB, which uses light to generate its colors, CMYK colors are produced by combining ink. The CMYK color space combinations cyan, magenta, yellow, and black to render every color in its gamut. Move the white triangle to the right and the rest of the background will disappear.CMYK - which stands for “cyan, magenta, yellow, and K (black)” - is an additive color model that uses some combination of those four colors to generate every color within its spectrum. Bring up the Levels dialog box again: command-L on a Mac and Control-L on Windows. Now I want to get rid of the background altogether. Note, if the color cast were blue, you would select the " b" channel: Now move that middle triangle to the right and the green in the background will start to change color. Since we want to get rid of the green, scroll down to " a", which is the green to red spectrum (A), and click OK: What makes Lab Color mode so fantastic is that you do so without drastically affecting the other colors in the bracelet.įirst, bring up the Levels dialogue box by going to the Image menu, selecting Adjustments and in the drop-down menu that appears, select Levels (or just use the shortcut- command-L on a Mac and Control-L on Windows):Īt the top of the Levels dialog box, next to the word "Channel" there is a drop-down menu. It consists of a luminance-or lightness-component (L) and two other components: a green to red spectrum (A) and a blue to yellow spectrum (B).Ĭonvert it to Lab mode by going to the Image menu, select Mode and in the drop-down menu that appears, scroll down and select Lab Color:įor me, this photo had way too much green in the background and that's what I want to get rid of. Lab Color mode was created as a color mode independent of both light (RGB) and pigment (CMYK). Think of RGB as the colors projected by a slide or movie against a wall and CMYK as the paint on the wall. RGB is often called the color model of light because it does not exist in any other form except what you see displayed on a monitor, television or digital device.ĬMYK color mode uses a cyan (C), magenta (M), yellow (Y) and black (K) color model and is best described as the color of pigment (ink or paint or whatnot) reflected on a page or canvas. RGB is the most common and uses a red (R), green (G) and blue (B) color model that is best employed for the Web, although most graphic artists work in RGB mode in Photoshop and then convert to CMYK mode as a last step before going to print. Photoshop allows you to work in several different color modes. I have found that the quickest and easiest way to get rid of that color cast is to convert the image to Lab mode in Photoshop and tinker with it there. When it comes to photographing my beadwork for, I often end up with an annoying color cast even when I photograph the jewelry using a light box, turn off the flash, use an Ott-Lite for lighting and fiddle with the settings on my digital camera.
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