C program to convert RGB (Red, Green, Blue) color format into CMYK color...

https://www.easterscience.com/q22-in-digital-world-colors-are-specified-in-red-green-blue-rgb-format-with-values-of-r-g-b-varying-on-an-interger-scale-from-0-to-255-in-print-publishing-the-colors-are-mentioned-in-cyan-magent/