mellowness

(noun) kindheartedness through maturity or old age.

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

(noun) the property of a sensation that is rich and pleasing. Synonyms: fullness, richness. Examples: "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."

(noun) a soft shade of a color. Example: "A mellowness of light and shade not attainable in marble."

(noun) geniality, as through the effects of alcohol or marijuana.