Generally speaking, golden dragon means majesty and domineering, and can also be used as a metaphor for good luck. In short, it is a more positive image. The image of Jinlong can be used in some works such as decorations and gifts.
Yellow generally represents China, and it is said that the Yellow Emperor ascended to heaven from Huanglong. Huanglong is the representative of the Chinese nation.
Qinglong has seen a lot in film and television dramas, and is also a frequent visitor to Taoist knowledge, such as the East Qinglong in the Four Elephants, Guan Yu's Qinglong crescent moon blade and so on.
White dragons are generally mysterious and easygoing. It can be applied to some artistic works with high artistic conception.