Royal red is a vibrant shade of red that is associated with royalty and grandeur. If you're looking for synonyms that convey the same sense of elegance and regalness, you might consider using words like crimson, burgundy, scarlet, or wine. Other words that could be used include cardinal, ruby, cherry, vermilion, or maroon. Each of these words has its own unique shade and tone, but all convey a sense of richness and sophistication that is often associated with the color red. So the next time you want to describe something as royal red, consider using one of these synonyms to add depth and variety to your language.