solid-color kimono fabric (any color but black); kimono made of such fabric
Refers to a type of kimono fabric that is a single, undecorated color other than black, or a kimono made from it. Often used for semi-formal occasions.
A solid-color kimono can be worn as semi-formal attire when a single family crest is added.
An elegant solid-color obi came out of my grandmother's chest of drawers.
訪問着 is a formal kimono with a pattern that flows across the seams, whereas 色無地 is a simpler, solid-color kimono often used for semi-formal occasions.
Formed from 色, “color,” and 無地, “plain or unpatterned material.” 無地 is read むじ in its independent form as well.