Change black color in Seaborn boxplots

Question

I am making a presentation and want to change all use cases of black color in Seaborn boxplot (lines, ticks, fonts, etc) to #28324a

In Matplotlib, I can do this:

for k, v in mpl.rcParams.items():
    if v == 'black':
        mpl.rcParams[k] = '#28324a'

How do I can perform such thing in Seaborn?