You can even order paper paint samples (some outlets have them in-inventory) and these can operate pretty well as they tend to have a slightly better sheen. Just do what my shopper did (previously mentioned) and tape them to some thing white in order to begin to see the depth/contrast. http://whatisagoodcolortopaintki25814.ambien-blog.com/392546/the-basic-principles-of-painting-formica-cabinets