Both Colours and Music are emotional response stimulators. These reactions are the basis of how we react to a particular video. To emphasize on the dark and unscrupulous drama in a video, cold blue, black and dark grey can be incorporated to give the video a realistic feel. A high pitched and strong rhythm music can complement the colours and tonality of the video.
To give the video a positive vibe, light and vibrant colours could be used in the video, Bright objects in the background can also add a sense of peace. And when it comes to you, you feel light at heart. In such videos, lightness in the textual sounds is maintained to keep balance with the colours and message of the video.