Read a book with each color in the title (I may also use color on the cover).
Blue (Turquoise, Aquamarine, Navy, etc.)
Red (Scarlet, Crimson, Burgandy, etc.)
Yellow (Gold, Lemon, Maize, etc.)
Green (Emerald, Lime, Jade, etc.)
Brown (Tan, Chocolate, Beige, etc.)
Black (Jet, Ebony, Charcoal, etc.)
White (Ivory, Eggshell, Cream, etc.)
Any other color in the title (Purple, Orange, Silver, Pink, Magneta, etc.).
A word that implies color (Rainbow, Polka-dot, Plaid, Paisley, Stripe, etc.).