mellowness

kindheartedness through maturity or old age

a taste (especially of fruit) that is ripe and of full flavor

the property of a sensation that is rich and pleasing; "the music had a fullness that echoed through the hall"; "the cheap wine had no body, no mellowness"; "he was well aware of the richness of his own appearance"

a soft shade of a color; "a mellowness of light and shade not attainable in marble"

geniality, as through the effects of alcohol or marijuana