For over 20 years, Judith van Vliet has helped develop palettes for leading brands with her own company, The Color Authority, while working with organizations such as the International Color Marketing group, where she served as president from 2018 to 2020. Judith describes her vocation as a “mission to help people unleash the right colors in their lives and develop unique ideas for individuals and businesses.” In our conversation, Judith explains the psychological background of our relationship with color. She also details how color’s role in interior design is shifting to emphasize a more diverse range of emotions, and how we can learn to better understand—and master—our own use of color in everyday life.