Matlab label with different colors on the string using latex interpreter

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Oyeniyi on 14 Apr 2016
Commented: Chibuzo Nnonyelu on 18 Dec 2018
How do I specify different font colors on the same string using the TEXT, TITLE, XLABEL, YLABEL, or ZLABEL commands etc., while using the LATEX interpreter. For example, the command below works well with the TEX interpreter, how do I get it (or something similar) to work with the LATEX interpreter.
\color{red}x \color{green}+ \color{blue}y

Daniel Lyddy on 18 Sep 2017
Suppose you have a 3-vector called 'titleColor' that holds the RGB components of the color you want to assign to the title (which I will call 'titleString').
tStr = sprintf('\\color[rgb]{%f, %f, %f}%s', titleColor, titleString);
title(tStr);
I haven't tried this trick with labels yet, but I don't see why a similar approach would not work.
And yes, there are two backslashes before the color[rgb] in the code above. The sprintf command drops one of them.