How to plot lines of different colors

Ok so lets say I have a plot and I want to give it a unique color just for fun. plot(x,y,'z.-'); where z is the color I want to use. I've heard about some things like rgb codes. I've looked them up, tried them, tried them again dividing by 255 to get decimals, and nothing works for me.

ex: plot(x,y,'Color',[123,123,123],'.-');

What do I do?

Answer 1

[Walter Roberson]

plot(x, y, '.-', 'Color', [123, 123, 123])

or

plot(x, y, 'Color', [123, 123, 123], 'LineStyle', '.-')