1 sentence for 彩 (cǎi — color)

1. 春节期间，整座城市都张灯结彩，十分热闹。

   Chūn​jié qī​jiān, zhěng zuò chéng​shì dōu zhāng​dēng jié cǎi, shí​fēn rè​nao.

   During the Spring Festival, the whole city was festooned with lanterns and streamers, creating a lively atmosphere.

   Source: Dong Chinese Dictionary