The phrase "de colors" does not exist in English as a single word, so it is not possible to provide antonyms for it. The word "colors" itself can have a variety of antonyms, depending on the context. For example, the opposite of "bright colors" might be "dull colors," while the opposite of "warm colors" could be "cool colors." In terms of generalizing, black and white are often considered as antonyms of colors, as they are opposite ends of the spectrum. However, without further context or clarification, it is impossible to provide a specific set of antonyms for "de colors.