Light blue. Starry blue and sapphire blue are both blue tones, but the hue is different. Starry blue is a light blue, while sapphire blue is a brighter and deeper blue. It can usually be quoted by gems, because this blue color is very close to the color of gems. Starry blue can be used to express a soft, fresh and elegant feeling, which is often used in interior decoration, furniture design, graphic design and other fields. Starry blue is usually matched with light colors such as pink, gray and white, which can create a soft, warm and romantic atmosphere. Sapphire blue is more suitable for matching with cool colors such as gold, silver and black, which can create a luxurious, elegant and noble atmosphere.