Green is Not a Creative Color is a catchphrase by Sketchbook from the first Don't Hug Me I'm Scared. The phrase dismisses the color green. In the first Don't Hug Me I'm Scared, the puppets arranged leaves and sticks into their favorite colors (Red Guy likes blue, Duck Guy likes red, and Yellow Guy likes green). However, according to the sketchbook, green isn't a creative color. The phrase soon gained popularity within the fandom due to its random nature, and an official shirt featuring the quote was released as a result.
In the second Don't Hug Me I'm Scared, Tony the Talking Clock said brown when washing the character even though the rhymes of the words and lyrics were leading up to green (such as mean and clean).