Imperial yellow is a rich and vibrant shade of yellow that has been used historically in China and other countries to indicate royalty and power. However, there are various synonyms for this dynamic hue. Lemon yellow is one of the lighter shades that can be used in place of imperial yellow. It is more subdued but still has an energetic quality. Another option is mustard yellow, which is a deeper and more muted version of the hue. Additionally, saffron yellow has a touch of orange and can be a great alternative to imperial yellow. Finally, gold ochre is a darker and more earthy yellow that can be used as a substitute for imperial yellow.