RGB = RGB('COLORNAME') returns the red-green-blue triple corresponding to the color named COLORNAME by the CSS3 proposed standard , which contains 139 different colors (an rgb triple is a 1x3 vector of numbers between 0 and 1). The color names are the ones accepted by almost all web browsers, for example Brown, DarkRed, SlateGray.
RGB CHART creates a figure window showing all the available colors with their names.
COLORNAME = RGB(r,g,b) and COLORNAME = RGB([r,g,b]) both find the name of the color with the triple that is closest to [r,b,g] (measured by sum of squares).
c = rgb('DarkRed') gives c = [0.5430 0 0]
c = rgb('Green') gives c = [0 0.5 0]
plot(x,y,'color',rgb('orange')) plots an orange line through x and y
rgb chart shows all the colors
cnam = rgb(0.8,0.3,0.3) gives cnam = 'IndianRed'
Kristjan Jonasson (2022). RGB triple of color name, version 2 (https://www.mathworks.com/matlabcentral/fileexchange/24497-rgb-triple-of-color-name-version-2), MATLAB Central File Exchange. 取得済み .
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