I e never thought window hardware to be a feature unless in really old homes with true decorative hardware. Matching is fine, everything isn’t the star

IMO we need a bit of info I rarely like black hardware on white but without any info who knows . Is your style of the interior traditional , since inside can be a lot different than outside IMO

If these are vinyl windows, the hardware is often white like the window itself.

I would not want black hardware to stand out on the frame.

^ agree, we did white so the hardware would blend

Match the hardware to the window. Cranks and latches should disappear.