Stripes in blue work because they are straightforward and they create visual structure without requiring any interpretation on your part. A striped blue dress is easy to wear and easy to style because the pattern does the heavy lifting while the blue keeps everything wearable. The stripe width and color contrast matter significantly. Thin stripes read differently than bold ones and high-contrast stripes create a different effect than stripes in tonal shades of blue. We gravitate toward the versions where the stripe pattern actually flatters and the construction is solid enough that the stripes stay aligned through wearing and washing. These are the striped blue dresses that work because they are honest and direct and completely reliable.