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If we wish to apply any color that exists already within the document or object, we can sample color with the help of a tool, i.e., Color eyedropper to achieve the exact match. We can select an outline and fill color with the use of choosing any color from the palette, document palette, and color palette (custom) from the color blends, color views, and palette libraries. Such as, a monitor of 8-bit can be shown up to only 256 colors within the 24-bit picture. Regardless of various colors, any image includes, an image shown onscreen is finite to the greater color's number supported by a monitor over which it will be viewed. So, the RGB image can be often defined as the 24-bit RGB, and the CMYK image can be defined as the 32-bit CMYK. Usually CMYK, grayscale, and RGB images include the data per every color channel of 8-bit. For example, the pixel along with the 1-bit depth can contain two values: white and black. It can be determined by an image's bit depth. The color depth assigns to the color's maximum number a picture can contain. Changing any color picture to grayscale makes the black-white picture. All the grayscale color contains similar values of blue, green, and red elements of the color model, i.e., RGB. It describes the color with the use of lightness, one element only, which can be measured within the values which are range from values 0 to 255.
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Such as brightness values, saturation values represent percentages and range from values 0 to 100. Brightness defines the white's amount in a color. Saturation value represents percentages and ranges from values 0 to 100. Saturation defines the dullness and vividness of the color. Hue defines the color's pigment and can be expressed in degree for representing any location over a specific color wheel. This color model applies H (hue), S (saturation), B (brightness) as elements to define a color. Note: RGB color model is the most widely used because it permits a wide color range to be displayed and stored. If all element's value is 0, signifies the light's absence, the eye distinguishes a color like black. RGB is applied on various monitors, where green, red, and blue lights are combined in several ways for reproducing the color's wide range. This element's combination defined any single color. With the higher rate image, like a 48-bit image, this value range will be higher.
![coreldraw color palette coreldraw color palette](https://i.ytimg.com/vi/apGnF7llczw/hqdefault.jpg)
With a 24-bit image, all the elements are expressed like any number from a range 0 to 255. This color model applies the elements R (red), G (green), B (blue) for defining the red, green, and blue light's amount inside the facilitated color. Usually, colored ink is more expensive than using black ink.
![coreldraw color palette coreldraw color palette](https://i.ytimg.com/vi/apGnF7llczw/maxresdefault.jpg)
Black ink generates sharper outcomes, especially to printed text. Black (K) is added in a color model to print objectives because the black ink will be darker and neutral than blending yellow, magenta, and cyan's similar amount. If all the color elements (C, M, Y) value is 0, no color will be inserted to a surface. If all the color elements (C, M, Y) value is 100, then the final color will be black. The values of these elements represent the percentage and range from values 0 to 100. The CMYK, which is applied to print, applies the elements C (cyan), M (magenta), Y (yellow), K (black) to depict color. There is a color model's range to select from when designing graphics. The color models facilitate a precise technique to define colors, all the models describing colors by using unique color elements.