Colors RGB - W3Schools
https://www.w3schools.com/colors/colors_rgb.asp
An RGB color value is specified with: rgb (red, green, blue). Each parameter (red, green, and blue) defines the intensity of the color as an integer between 0 and 255. For example, rgb (0, 0, 255) is rendered as blue, because the blue parameter is set to its highest value (255) and the others are set to 0. Try it Yourself
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