This paper investigates how color can enhance sustainability in textile and fashion design, based on the Sustainable Consumption and Production framework. It highlights the significance of extending product lifespans and deepening user attachment through strategic color use, which fosters emotional connectivity and promotes sustainable consumer behaviors. A qualitative analysis of four case studies from the Swedish School of Textiles demonstrates that integrating color enhances product appeal and supports environmental sustainability by influencing user behavior. These cases illustrate varied methods of incorporating color in design processes to improve product longevity and minimize environmental impact. The discussion points out that despite the industrial focus on speed and cost, using color strategically can extend textile durability and promote sustainable industry practices.