Along with the set of blue bowls (seen in the lower right,) here is a selection of other colors following the same or similar color motif.

the base glaze is seattle pottery SPS-3 Sand Opaque. from the top, left to right, we have Amaco Seaweed, Amaco Ancient Jasper, Amaco Blue Midnight, Amaco Chun Plum, Seattle Pottery Supply SPS-8 Opaque White and lastly, the Indigo float from the earlier set.