Keep One Shared Element
If you mix hardware styles, keep at least one element consistent. That could be the finish, the color family, or the decorative theme.
Use Pulls on Larger Drawers
Drawer pulls often make more sense on larger or heavier drawers, while knobs can work well on smaller doors and drawers.
Don’t Mix Too Many Themes
Crystal, floral, antique, and modern hardware can all be beautiful, but using too many unrelated styles in one space may make the room feel disorganized.
Think Room by Room
A vanity and dresser in the same bedroom may look best with related finishes, even if the exact hardware shape is different.
Conclusion
Mixing knobs and pulls can create a layered look when you keep the overall palette and style direction consistent.