Bring home some paint sample cards from your local home improvement store to try to closely match the shade of your celery carpeting. This will help you to determine the exact undertones in the color for a good match with other decorating items.
Match the celery hue with other colors you enjoy having around your home. A pale yellow and pale pink combination can be uplifting and spirited. Light gray walls with green-white-gray printed textiles can bring the room together for a soft, natural look. White and pale lavender with celery can make an unexpected and refreshing combination.
Add prints with a light shade of green in them to lightly accent the color of the carpeting.
Paint woodwork and trim white for a nice contrast that makes the room look fresh and clean.
Accent with natural wood, terra cotta, stone and wicker to take advantage of the natural feel of the green.
Add plants, both real and artificial, to highlight and contrast with the green carpeting tone.
Give celery green a cool, elegant look by adding silver accent pieces like mirrors, candlesticks, picture frames and other ornaments.