There's no single answer to this question as preferences vary greatly from person to person. However, research suggests that red might be perceived as attractive by women due to its association with power and confidence.
Other studies indicate that blue is a popular choice for both men and women. While red might trigger an immediate attraction, blue has a more calming and approachable effect.
It's crucial to remember that individual preferences play a significant role, and what one woman finds appealing another may not. Ultimately, it's important to focus on personality, confidence, and overall style rather than solely relying on the color of one's clothes.