Linear gradients are classics. They are subtle, yet fun and they do have a special charm. For instance, this cool sea blue to light sea green gradient goes well on any kind of product and makes the perfect gift. You can use it as it is, or you can customize it to add your text and/or images and make a really unique product.
This linear gradient is available in two versions - sea blue to light sea green and light sea green to sea blue. You can find gradients in two shades (vertical and horizontal) and in two colors (vertical and horizontal).
If you are looking for more gradients, you might want to check these bilinear gradients. Again, they come in two shades (vertical and horizontal) and two colors (vertical and horizontal).
If you are looking for single color models that use the same colors from the gradient, check the Single Colors category where you will find dozens of shades arranged by color.
For more models, you can check my other shops - Tartan Plaid Designs and Geometrical Shapes, where you will find many tartans and plaids and designs with stripes, squares, circles, and other geometrical shapes, respectively.