Next time you find yourself having trouble solving a literary problem in your writing, use colors to help you brainstorm an answer.
Say you find yourself uncertain how your main character will get out of a seemingly hopeless situation. What would a purple solution to the problem be? Purple might lead you to think of royalty, twilight, grandmothers, or magic, any of which could suggest a solution. If that color doesn’t work, move on to the next. You can go through the colors in order, or pick one at random.