When using figures, you can easily change the spine color with:
ax.spines['bottom'].set_color('#dddddd')
ax.spines['top'].set_color('#dddddd')
ax.spines['right'].set_color('red')
ax.spines['left'].set_color('red')
Use the following to change only the ticks:
which="both"changes both the major and minor tick colors
ax.tick_params(axis="x", colors="red")
ax.tick_params(axis="y", colors="red")
And the following to change only the label:
ax.yaxis.label.set_color('red')
ax.xaxis.label.set_color('red')
And finally the title:
ax.title.set_color('red')