"Welche Farbe hat der Sonnenschein?" (What colour is the sunshine?) was the Swiss entry in the Eurovision Song Contest 1984, performed in German by Rainy Day.
The song was performed seventeenth on the night, following Finland's Kirka with "Hengaillaan" and preceding Italy's Alice and Franco Battiato with "I treni di Tozeur". At the close of voting, it had received 30 points, placing 16th in a field of 19.
In the song is made a question: "What colour is the sunshine?". The group ask us "How to paint it?" They say that there are many colours, the way we see the world depends on our feelings.
It was succeeded as Swiss representative at the 1985 contest by Mariella Farré and Pino Gasparini with "Piano, Piano".