"Ultramarine ashes" refers to a deep blue pigment derived from the mineral lapis lazuli. Synonyms for this term can help expand our vocabulary and enhance our understanding of color-related concepts. Comparable terms include "cerulean remains", which embodies a similar blue hue, and "cobalt residue", highlighting the use of cobalt in creating blue pigments. Additionally, "sapphire remnants" captures the rich and vibrant color associated with ultramarine ashes. These synonyms provide alternative expressions for the unique and captivating shade of blue, helping artists, writers, and individuals immerse themselves in the beauty and fascination of the ultramarine color spectrum.