Those are Violets, they will be non-pearled but the color of a Royal Purple. Cute! Didn't you have a Slate in your mix of adults?
(Sorry I can't keep track, I am hatching poults, keets and peachicks left n right over here and changing/cleaning brooders feeding and filling waterers non-stop, lol... so I am scatterbrained like you would not believe lol).