QV1 = plt.quiver(*origin, pca.components_[0,0], pca.components_[0,1], color=['blue'], scale=6.0)
QV2 = plt.quiver(*origin, pca.components_[1,0], pca.components_[1,1], color=['black'], scale=6.0)
leg = plt.legend([QV1, QV2], ["Principal Component 1", "Principal Component 2"])
leg.legendHandles[0].set_color("blue")
leg.legendHandles[1].set_color("black")