Not quite sure what moss green looks like when the color refers to pottery? Here's a few examples. Note however that as with all pottery, the exact color, glaze and overall appearance will vary from piece to piece.

Blue	Sky Blue	Aquamarine	Moss Green
Mint Green	Wasabi	Antique Jade	Vermillion
Antique Beige	Antique White	Champagne	Beige
Bronze	Honey	Sunset	Cappuccino
Black Copper	Anthracite Silver	Black