To pair patterns with red effectively, consider the following tips: 1. Choose a red with a complementary color scheme that works well with the pattern's colors. 2. Keep the pattern and red in moderation to avoid a cluttered look. 3. Use red as an accent color, like on a pocket square or tie, if the main fabric is patterned. 4. Consider the intensity of the red and the pattern’s complexity; pairing a muted red with a bold pattern can create a harmonious balance.