RICHMOND, Va. – Goodbye, Marlboro Lights. Hello, Marlboro Gold Pack.

“Light” cigarettes are going up in smoke by the end of June, but their names and packaging are getting a colorful makeover.

The U.S. Food and Drug Administration says cigarette packs no longer can feature names such as “light,” “mild,” “medium” or “low,” which many smokers wrongly think are less harmful than “full-flavor” cigarettes.

Cigarette makers are replacing those words with colors such as gold, silver, blue and orange on brands that make up more than half of the smokes sold across the country.

Anti-tobacco advocates say the colors are just as bad as the words, but tobacco companies argue they have a right to let smokers know which products are which.

Companies insist the words tell smokers about the taste, feel and blend of a cigarette, not health risks. The cigarettes usually feature different filters and milder-flavored blends.

Long years of advertising, however, emphasized measurements of lower tar and nicotine in “light” cigarettes, even though those were measured with smoking machines that don’t mirror how real smokers puff. For example, smokers will inhale more deeply or smoke more cigarettes if they’re not getting the amount of nicotine they want.

Studies show that about 90 percent of smokers and nonsmokers believe that cigarettes described as “light” or have certain colors on the packages are less harmful even though “all commercial cigarettes are equally lethal,” said David Hammond, a health behavior researcher at the University of Waterloo in Canada.

Colors shape perceptions of risks on all products, Hammond said.

For example, mayonnaise and soda usually use lighter colors on their packaging to distinguish between diet, light and regular products.

He called the removal of those few words on cigarette packs “necessary but not sufficient measures” to improve public health or reduce false perceptions.

“This is essentially mopping up the worst excesses of what the courts in the U.S. have judged to be deceptive advertising,” he said.

“Tobacco companies are going to need words to distinguish their brands; it’s just a question of identifying what descriptors or words lead to false beliefs.”

He suggested the FDA take the ban even further and restrict both color and words such as “smooth” and “slim.”

The idea of further packaging restrictions has the industry gasping for breath.

“Absent this information, massive confusion in the marketplace would result,” James E. Swauger, vice president of regulatory oversight for R.J. Reynolds Tobacco Co., the nation’s second-biggest cigarette company, wrote in a letter to the FDA.