Fullscreen color: Ultramarine Blue Ultramarine Blue Color Attribution: NBS_ISCC — H_Horticultural_Colour_Charts (License: Public Domain)NBS_ISCC — A_Dye_Colors (License: Public Domain)NBS_ISCC — C_Centroids_Of_The_NBSISCC_Catalog (License: Public Domain)NBS_ISCC — M_Dictionary_Of_Color (License: Public Domain)NBS_ISCC — R_Color_Standards_And_Color_Nomenclature (License: Public Domain)