This is the 1243rd most frequent Turkish word.
mavi
Blue.
In this sentence, 'mavi' is used as an adjective describing the color of the sky.
Gökyüzü mavi renkte çok güzel görünüyor.
The sky looks very beautiful with its blue color.
Here, 'maviye' is the dative case of 'mavi,' showing the transformation of the door to the blue color.
Evin kapısı maviye boyandı.
The door of the house was painted blue.
In this instance, 'mavi' is used as a noun referring to the color blue.