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.
Dessert wines are higher in both sugar and alcohol - some going as high as 21% ABV. These wines are sweet and thick, meaning they have a very high calorie content. You can expect as much as 189 to 275 calories per 175ml glass, although serving sizes for such wines are usually between 75 and 125ml.