A tonal outfit needs interruption, not another color. The short sleeves of a brown turtleneck leave a gap before the knit arm warmers begin, drawing attention to the arms without disturbing the shared palette. The break does the work. Against it, the high neckline gives the upper body a clean, continuous line.
Texture is the quieter source of contrast. A smooth knit beside a more visibly ribbed arm warmer creates a distinction that color alone might otherwise supply, while the skirt introduces its own surface and movement below the top. Proportion matters just as much. If the top meets the skirt at the waist, that meeting point can define the silhouette; a longer, untucked hem produces a less divided line. Neither is inherently better, but each changes where the eye pauses. The skirt's length has a similar effect: more space between its hem and the boots places emphasis on the leg, while a closer meeting gives the lower half a more continuous appearance.
Black boots earn their place by adding weight rather than competing for attention. Their darker finish anchors the brown pieces, and their height determines how much of the leg remains visible beneath the skirt. Keep the details deliberate. A slim boot can sharpen the outline, whereas a heavier sole shifts the balance downward; either can work if the skirt and footwear are considered together. The effect depends less on matching every shade than on letting each edge register. In the narrow space between a sleeve and a warmer, a single color finds room to speak.