Valtiel (Silent Hill 3)
Theory: this is open to speculation, but I think according to the Order's beliefs the color blue might symbolize finality and irreversible death, which is why its Otherworlds lack that color. Compare to red, which connotes rebirth. ... Not to mention that dead flesh is often blue. So the meaning that becomes reversed when the Halo is drawn in blue goes from, "God will be reborn" to "I hope She dies and stays dead."