Unfortunately neither colour nor turbidity are strong indicators of the overall chemical composition of water. However both colour and turbidity reduce the amount of light penetrating the water and can have significant impact on algae and macrophytes.
Wines range from 0 to about 220 grams per liter sugar, depending on the style. Dry wines can contain up to about 10 grams of sugar per bottle but still taste dry. Bone Dry <1 cal per glass. Dry 0-6 cal per glass.
Even on a strict low-carb diet (below 20 grams per day) you can probably have a glass of wine fairly regularly. And on a moderate low-carb diet, wine is not a problem. Please note that dry wines contain less than 0.5 grams of sugar per glass.