This will make you add label and change colorbar's tick and label size: clb=plt.colorbar() clb.ax.tick_params(labelsize=8) clb.ax.set_title('Your Label',fontsize=8) This can be also used if you have sublots:

Whether to draw lines at color boundaries. The label on the colorbar's long axis.

Colorbar Tick Labelling# Vertical colorbars have ticks, tick labels, and labels visible on the y axis, horizontal colorbars on the x axis. The ticks parameter can be used to set the ticks and the format parameter can be used to format the tick labels of the visible colorbar Axes.

Apr 28, 2025 · The matplotlib.pyplot.colorbar() function in Python adds a color scale (color bar) to a plot, helping to interpret the relationship between data values and colors in colormapped plots like imshow(), scatter() or contourf(). Let us see an example to understand this better:

Here, we create a basic continuous colorbar with ticks and labels. The arguments to the colorbar call are the ScalarMappable (constructed using the norm and cmap arguments), the axes where the colorbar should be drawn, and the colorbar's orientation.

Dec 4, 2017 · You are looking to add a label to the colorbar object. Thankfully, colorbar has a set_label function. in short: cbar = plt.colorbar(contour, format=ticker.FuncFormatter(fmt)) cbar.set_label('your label here') In a minimal script:

Sep 10, 2024 · Matplotlib, a powerful plotting library in Python, offers various ways to customize colorbars, including modifying their labels.

3 days ago · Currently the colorbar tick label formatting will use the format string provided earlier: cbar_num_format = "%d", but I'd like to also set the font size and weight using: cbar.ax.set_yticklabels(np.arange(cbar_min, cbar_max+cbar_step, …

Nov 5, 2021 · Here we will discuss how to change the label size and tick label size of color-bar, using different examples to make it more clear. Syntax: # Change the label size. im.figure.axes[0].tick_params(axis=”both”, labelsize=21) axis = x, y or both. labelsize = int # Change the tick label size of color-bar

Dec 29, 2021 · In this article, we are going to see how to change color bar labels in matplotlib using Python. The colorbar() function is used to plot the color bar which belongs to the pyplot module of matplotlib adds a colorbar to a plot indicating the color scale.