Though its various hues--blue, pale purple, grayish red, light brown, and gray--are all lovely, its beautiful blues are the stone's best-known representatives. T'ien-lan-tung is semi-translucent and possesses an elegant and subtle beauty.
它的色澤柔美，有藍、淺紫、藕粉、淡棕、灰色等，其中以藍色最富美感與變化，又有淺藍、寶藍、灰藍、深藍之分，故而稱之為「天藍凍」。