Valmiki Ramayana Kishkindha Kanda Sarga 30 Shloka 27

महामेघैः with huge clouds, अभिवृष्टाः having showered rain, निर्मलाः clean, चित्रसानवः peaks of different colours, गिरयः mountains, चित्रदीप्तिभिः glowing in variegated colours, अनुलिप्ताः इव as if smeared , आभान्ति appear.

'The mountain slopes, having been washed by the showers of rain on all sides, are cleansed. They are shining in variegated colours and look as though the mountain peaks are smeared with glowing colours (of minerals).