Use the colour wheel as the basis for a single colourfull illuration that could be tessellated across the wrapping paper? color theory chart - beautifully simply way to learn this (plus the fact that I suck at combining colors LOL!
An Infographic On The Psychology of Color. Struggling to find the perfect color for something? Try taking a look at the emotions that colors evoke in people before choosing the latest color pallet for a new project.