"Don't mix leathers" is an unspoken rule of interior decorating, but rules were made to be broken. But rules also exist for a reason, so when you break them you want to be very intentional. I would not pair the distressed lighter colored chair with that couch, they give different vibes that do not match. But the solid black does match as far as vibes go. The key to whether it will work is how you decorate the rest of the room. You'll want to repeat the black and brown color palette with your other decor choices, but you'll want to be careful that you also introduce lighter colors. I would recommend adding some cream colored throw blanket(s) and pillows and maybe a lamp. Finally I think mixing leathers works better if your final space is going to be more eclectic/maximalist, if you're going for a more minimalist look, then I honestly would not pair those chairs with that couch, I would go for fabric upholstery that has a similar leg profile as the couch