When designing a logo to be printed or embroidered on a plain t-shirt, there are a few key things to keep in mind:
Simplicity: Keep the design simple and clean with clear lines and bold shapes. Avoid overly detailed or complex designs as they may not translate well when printed or embroidered.
Contrast: Choose colors with high contrast so that the design is easily visible on the t-shirt. Light-colored designs on dark shirts and vice versa generally work best.
Size: Consider the size of the design and make sure it is proportional to the size of the t-shirt. Keep in mind that smaller designs may be difficult to see when printed or embroidered, while larger designs may take up too much space.
Flexibility: Make sure the design is flexible and can be resized without losing quality or clarity. This is particularly important if you plan to use the same design on different sizes of t-shirts.
Vector format: Provide the design in a vector format such as .eps, .ai or .svg. This will ensure that the design can be resized and printed or embroidered with sharp, clear lines.
Fonts: If your logo includes text, use simple and easy-to-read fonts that will be legible when printed or embroidered.
By keeping these key points in mind, you can design a logo that will look great printed or embroidered on a plain t-shirt.