Lanthanoglobin-based blood is a hypothetical concept and does not exist in reality. Lanthanides, the elements from which lanthanoglobin would be derived, do not naturally occur in human blood. Additionally, the specific color of hypothetical lanthanoglobin-based blood is unknown and would depend on various factors, including the specific lanthanide element used, its concentration, and the chemical environment in which it is present. Without further information, it is impossible to determine the color of lanthanoglobin-based blood.