When you see a soft pastel color on a t-shirt, it uses something designers call “the rectangle tetradic color scheme.” This means it uses two different analogous colors to create a soft and warm fabric color.
A soft pastel t-shirt is highly versatile and can be worn for any occasion that calls for a light and airy touch. It is perfect for summer tees, restaurant uniforms, or a souvenir for your local festival.
When creating a graphic design for a soft pastel t-shirt, you need to pay extra attention to the contrast. You should check whether the color of your design matches the color of the t-shirt or not.
However, it doesn’t necessarily mean that you should always go for the black and white colors for your design to achieve that contrast. It will look dull.
It would be best if you tried picking up other color palettes. You can even try using a muted color palette like light blue or peach in your design. The point here is to use your imagination.
Adopting retro t-shirt designs is another excellent idea. Try checking out t-shirts from the 70’s and 80’s period. They often use soft and warm color palettes back then.