create a dress inspired by the Edwardian Era with a light color palette, I would consider incorporating some of the era's signature elements such as a high-necked collar and long, flowing skirt. I would also incorporate delicate lace or embroidery details, which were popular during this time.

For the color palette, I would opt for light pastel colors such as pale pink, lavender, or mint green, which were popular during the Edwardian Era. These colors would create a soft and feminine look that would be in keeping with the period's aesthetic.

The dress would be made from lightweight, flowing fabrics such as silk or chiffon, which would create a sense of movement and elegance. To complete the look, I would accessorize the dress with a large, elaborate hat, gloves, and perhaps some delicate jewelry such as a pearl necklace or earrings.

Overall, a light-colored dress inspired by the Edwardian Era would be a beautiful and elegant choice, capturing the romance and sophistication of this iconic period in fashion history.