Sometimes, subtlety is all you need. A modern design technique called the "Tonal Print" is a style we've been seeing a lot of lately.
It gives off some serious vintage vibes, and is characterized by choosing an ink colour 1-2 shades darker or lighter than the garment colour.
Exhibit A: Beige Ink on Beige Garment
Exhibit B: Black Ink on Black Garment
Exhibit C: Navy Ink on Heather Navy Garment (Especially lovely on a Heather Navy Ringer T-shirt!)
What tonal combinations would you like to see?