Here's a picture of the plot I get for a bivariate density. However the numbers next to the colorbar are really not of much use here, and I would like either to delete them or replace by 'LOW' and 'HIGH'. I didn't find any way of doing this so if any of you has info, it would be great. Here's the code i used for creation of this plot :
            df = self.dfuinsights
            ax = sns.kdeplot(data = df, x = key1, y = key2, fill = True, alpha = 0.7, tresh = tsh, levels = lvls, cmap = "viridis")
            xlabel = self.colnamesMapper_uinsights[key1]
            ylabel = self.colnamesMapper_uinsights[key2]
            title = "Bivariate Densities : " + xlabel + " - " + ylabel
            self.__convert_capitals(ax, title, xlabel, ylabel) #just modifying titles and xlabel, ignore this)
            plt.show()
            plt.close()

