define a color for plot

create a function or a variable mycolor that stores [0.1112456 0.2098437 0.31116789] and code 'Color', mycolor each time
create a DefaultLineColor property at the level of the object you want to use this color by default, such as set(gcf, 'DefaultLineColor', [0.1112456 0.2098437 0.31116789]) . You might have difficulty when you have multiple plots on the same axes.
Change the axes ColorOrder property to an N x 3 array of RGB values; the first line object in the axes will use the first row by default, the second will use the second row, and so on, with it going back to the beginning again if you draw enough lines

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alpedhuez 2018-6-8

编辑：Walter Roberson 2018-6-8

https://stackoverflow.com/questions/25755776/how-to-define-custom-color-shortcuts-like-r-g-b-k-etc-in-matlab

Walter Roberson 2018-6-8

在 MATLAB Online 中打开

The struct and containers.Map options suggested in that post fall into the same category as my first option: you still have to 'Color' and designate the color each time you plot. My second and third suggestions are ways to avoid needing to specify the color each time, so that

Plot1=plot(Date, A, 'LineWidth', 1.2)

could still end up using [0.1112456 0.2098437 0.31116789]

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