Again, the rule is simple: make your adjectives do work that needs to be done. “He looked at the gray sky and the black clouds and decided to sail back to the harbor.” The darkness of the sky and the clouds is the reason for the decision. If it’s important to tell the reader that a house was drab or a girl was beautiful, by all means use “drab” and “beautiful.” They will have their proper power because you have learned to use adjectives sparsely.
