Oil-rubbed bronze isn't dated, but on Blackberry it will be very low contrast and may disappear from the street. I'd use antique or brushed brass, not polished. The warm muted finish will stand out against the mulberry without looking shiny, and it suits the traditional panel and glass in your photo. Satin nickel is a quieter second choice if you don't want brass, but it may feel cooler next to the door. I'd replace the lock and handle as one matching set. Before ordering, paint a sample board with two coats and hold hardware samples against it outside. Blackberry can read brown, plum, or almost black as the light changes.