The color of wine can often be a confusing and sometimes overwhelming subject. White, red, dark, light, pink, rose - the list of adjectives can go on and on.
At a fundamental level, a white wine is white because the skins of the grape have been removed during the processing phase of winemaking. Conversely, with red wines, the skins have been left on, which is where the wine gets its color. Taking this a step further, a white wine can be darker or lighter depending on whether or not it has been aged in oak barrels or stainless steel tanks. Also, the varietal itself can naturally be lighter or darker - for example, Chenin
Blanc is almost always lighter in color
than, say, Chardonnay.
With red wines, Pinot
Noir is usually lighter in color than a
Cabernet Sauvignon. All of this aside, one
of the most important aspects of a wine's
color is the first impression it leaves
after being poured into the glass.
A lot of information can be gleaned in the moments after the wine hits the glass. Is the wine white or red? Light in color or dark in color? Often times, this first impression can set the stage for the rest of the tasting experience. As a general rule, a well made wine should appear clear and bright. Haziness, bubbles (unless it's Champagne), or a dull color can indicate something is off about the wine.
In order to clearly see any color "flaws" with the wine, hold the wine glass at a slight angle against a white background, such as a sheet of computer paper. If possible, try to be in a well lit room that is relatively odor free (see the Smell section for more information). In general:
» White wines can go from a light straw color to a deep golden hue.
This Color...
...Usually Reflects This Characteristic
Green-tinged
Youth
Straw
Majority of dry whites
Gold
Sweeter, more luscious whites
Light-brown
Wine may be in an "off" condition
Brown/amber
Too old (excess oxidation)
» Red wines that have a purple, dark hue tend to be younger wines. As red wines age they began to turn more ruby in color, with the some orange and sometimes even brownish hues toward the edge of the wine.
This Color...
...Usually Reflects This Characteristic
Purple
Youth
Ruby-red
Some aging
Red
Several years of aging
Red-brown
Maturity
Mahogany
Considerable age (or improperly stored young wine)
Another aspect to consider regarding color is viticulture techniques. Yield reduction, the process of reducing the number of grape clusters on a vine, can produce grapes of greater concentration, flavor intensity and deeper color.
Ultimately, you have to move onto smelling and tasting, however, the color of a wine is an important first step in evaluating your wine.