Suwayd narrated that Anas said,

The most beloved colour to the Messenger of Allaah (sallallaahu ‘alayhe wa sallam) was GREEN.”

(Musnad Al-Bazzaar)

Suwayd is dha’eef, but the hadeeth has mutaaba’aat collected by Ibn Jurayj, Al-Bayhaqee, and At-Tabaraanee. Al-Albaanee gathered them and concluded that the hadeeth is hasan by these numerous routes in the Silsilah #2054.