Colors Tutorial - W3Schools
https://www.w3schools.com/colors/
WEBRGB Colors. RGB color values are supported in all browsers. An RGB color value is specified with: rgb ( RED , GREEN , BLUE ). Each parameter 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.
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