A key element to an eye-catching poster is an attractive color palette. Your color palette should compliment your overall design, which can be a combination of black and white or shades of gray. A minimalist poster design can go with any color palette, but keep in mind that too much color can distract from your message. Be sure to take color samples with you when shopping. Remember, you want your color palette to be inviting, but not overbearing. A simple, soft-on-the-eye toned color palette is best for your poster design.