import matplotlib.pyplot as plt
from mpl_toolkits.axes_grid1 import make_axes_locatable
import numpy as np

fig, ax = plt.subplots()
im = ax.imshow(np.arange(100).reshape((10, 10)))

divider = make_axes_locatable(ax)
cax = divider.append_axes("right", size="5%", pad=0.05)

colorbar = fig.colorbar(im, cax=cax)
colorbar.ax.tick_params(axis='both', colors='red')
colorbar.set_label('label')
colorbar.ax.yaxis.label.set_color('red')
colorbar.outline.set_edgecolor('red')

im.set_clim((0, 10))

plt.show()