import numpy as np
from matplotlib import pyplot as plt

plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True

x = 2 * np.random.randn(5000)
y = x + np.random.randn(5000)

fig, ax = plt.subplots()
_ = ax.hexbin(x[::10], y[::10], gridsize=20, cmap='plasma')

ax.set_title('Hexbin直方图')

plt.show()