Which of the following is a design principle?

• A. Rhythm
• B. Line
• C. Color
• D. Texture

Answer: (A)

Rhythm is a design principle that governs how elements are repeated, varied, or progressed to create movement and a sense of flow in a space. In interior design, rhythm helps the eye travel smoothly from one area to another—think repeating shapes or patterns, gradually changing sizes, or alternating elements like chairs and lighting along a path. This principle ties together different parts of a room into a cohesive experience rather than leaving things feeling random.

Line, color, and texture are design elements. They are the raw materials designers use to craft a composition, set mood, or define surfaces. They inform the look and feel, but they’re not the organizing idea themselves. Rhythm uses those elements to create a sense of movement and unity in the space.