閑雅 is read as かんが (kanga) and means refined.
かんが
kanga
かんせい
quiet (e.g. neighbourhood)
かんさん
idle
かんこどり
cuckoo
かんじつげつ
leisure
かんわきゅうだい
getting back to the subject at hand, ...
かんもじ
idle words (in a written passage)
ゆうが
elegant
かくちょうこうが
refined
たいが
major festal song (subgenre of the Shi Jing)
とうが
Toga (Japanese etymological text by Arai Hakuseki, 1719)
こうが
しょうが
minor festal song (subgenre of the Shi Jing)