Help me pick chelsea's color

Hi Everyone,

I'm planning to buy Chelsea boots for both formal and casual use, but I'm a bit confused between two colors. I'm also considering black, but I worry that it might be too monotonous and not versatile enough for various outfits.

I'd appreciate any advice or suggestions. Should I go with the brown pair (on the left) or the maroonish-brown pair (on the right)

Thanks in advance.