This helps explain why giclées are more accurate in color and also why they are more expensive. Note how the mixed hues in each differ in value from their source/primary colors’ value these are examples of additive and subtractive color properties. This is one of many contributing factors that add to the difficulty of a straight conversion from RGB to CMYK or vice-versa.Ī few other examples of variables to consider while trying to color match original artwork are having a working knowledge of the equipment, understanding the differences between screen displays and printed results, and the fact that some colors are harder to match in CMYK print, purples for instance.ĭid you know that giclée fine art prints are actually printed on a high-end inkjet printer that contains 8–12 different archival inks? Photo Black, Cyan, Vivid Magenta, Yellow, Light Cyan, Vivid Light Magenta, Light Black, Matte Black, Light Light Black, Orange, Green, Violet. Glance back at the RGB and CMYK graphics above. The image is displayed in RGB and printed in CMYK. RGB is not CMYKįor most artists, adjusting an image on the computer monitor (RGB) until the color looks perfect does not usually result in an accurate color print (CMYK) because the sources of the color primaries are different. Dots of cyan, magenta, and black inks are included, resulting in a more dynamic black in the full-color composite image on the far right. Look again at the image above, specifically the upper left corner of each color plate. Image curtesy of – Halftone ShaderĪ trick of the trade – magenta or a combination of cyan and magenta dots are often printed along with dots of black (k) ink for a deep, rich-looking color. Cyan, Magenta, Yellow, and Blac k ink colors mix to create red, green, violet/blue, and rich blackīelow you can see how printed dots of the CMKY inks visually merge creating a color image. See how the mixed blue, red, and green hues are darker in value and in the RGB example above. As artists, this is the color model most familiar to us. ![]() ![]() Notice how mixing cyan, magenta, and yellow together generates black. Red, Green, and Blue light colors mix to create yellow, red, cyan, and white CMYK - the colors of printĬMYK is an abbreviation for the four primary colors (cyan, magenta, yellow, and black) of ink used in combination to create a hue in standard printing. Note the mixed hues cyan, magenta, and yellow are lighter in value than the CMYK example below. This is why many find it difficult trying to adjust the colors of an RGB image. See how the combination of all three primaries of light results in white, opposite of what we are familiar with. RGB refers to the three primary colors (red, green, and blue) of light used to create color in TVs, screens, monitors, digital displays, and so on. Most pictures on the internet are displayed at 72 DPI, while images used for color printing need to be at least 300 DPI. These terms are most often used when speaking about the resolution of an image. DPI or PPI - dots per inch or pixels per inch Understanding the Lingoīefore we can understand the challenges of color-matching artwork, we first need to be sure we’re speaking the same language. RGB images tend to darken and dull when converted to CMYK, and some colors are more affected by the conversion than others. Unfortunately, there is more to it than a mouse click. If only it were as simple as selecting the option “convert to CMYK” in a photo editing program such as Photoshop. Artists are inherently DIYers, and their efforts at color correction can lead to hours spent tweaking images, often resulting in frustration and disappointment in the printed results. It goes without saying that achieving an accurate color representation of original artwork is the desire of most artists.
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