Sometime one needs to use different colors to depict a figure. With the knowledge of the "Hex Code" of each color in Gnuplot, we can choose our favor color to plot.
To use "Hex Code"s we do as follow pl 'FileName.dat' u 1:2 w lp lc rgb '#HexCode'
For example, the Hex Code for the blueviolet is 0000FF. The codes for each color can be found in
below figures. (From this Website)
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