Cadet blue is a popular color in the fashion and interior design industry. It is a beautiful shade of blue that adds a touch of sophistication to any setting. If you are looking for synonyms for this hue, there are a few options available that you can consider. Some of the suitable synonyms you can use include dusty blue, steel blue, powder blue, navy blue, slate blue, or celestial blue. They all share some common characteristics such as a muted, cool-toned shade of blue and work well in various design concepts. So, whether you're describing paint colors, fashion items, or home accessories, these synonyms can help you add some variety to your vocabulary while expressing the color.