Formal:
* Nous aimons le rose. (This is the most literal translation and is appropriate for formal situations.)
Informal:
* On adore le rose. (This is a more casual way to say it and is more common in everyday speech.)
* On kiffe le rose. (This is a very informal way to say it and is slang for "we love pink".)
Other Options:
* Le rose, on l'adore! (This translates to "Pink, we love it!" and is a more expressive way to say it.)
It is important to choose the appropriate form depending on the context and your relationship with the person you are speaking to.