Which CARP principle focuses on creating visual differentiation through color and brightness?

• A. Contrast
• B. Alignment
• C. Proximity
• D. Repetition

Answer: (A)

Contrast focuses on creating visual differentiation through differences in color and brightness. By using contrasting colors and varying luminance, you guide attention, establish hierarchy, and improve readability. For example, a bright, saturated button on a muted background stands out as the primary action, while light text on a dark background enhances legibility. Alignment helps arrange elements along shared edges, proximity groups related items by closeness, and repetition builds consistency across the interface; none of these specifically center on differentiating elements through color or brightness, which is why contrast is the correct concept here.