Well, you could look at the axes ColorOrder property, but you are going to have a very difficult time distinguishing all those.
If you are plotting a large number of different traces, I recommend using the MATLAB File Exchange contribution "plt", which makes it easy to supply lists of colors and styles and markers and will automatically use each combination.
plt() handles up to 99 traces per plot at the same time: more if you turn off the generation of the legend.
There is another contribution to help pick out the maximally perceptually different colors: see http://www.mathworks.com/matlabcentral/fileexchange/29702
