This is the 2990th most frequent Chinese word.
紫色
Purple.
Here, "紫色" functions as a noun indicating a color description.
天空呈现出淡淡的紫色。
The sky is showing a faint purple color.
In this sentence, "紫色" is used as an adjective modifying "连衣裙".
她穿着一件紫色的连衣裙。
She is wearing a purple dress.
Similar to Sentence 2, "紫色" describes "花朵", serving as an adjectival phrase.