White on white and black on black
Light Text on Light Garment
Due to the thin nature of the ink used in DTG printing, light-colored ink is often difficult to see on light fabric. To improve readability and visibility, it's recommended to add a darker background behind your design (if you wish to use a light colored artwork) or preferable, use artworks with darker colors.
Black Text on Black Garment
When printing black text on a black or dark garment, the white underbase can sometimes make the design appear more grayish rather than truly black. To help the text stand out, it's a good idea to use a white or light-colored background on dark fabrics. A white underbase is used for prints that aren't white themselves, involving layers of white ink followed by a color layer to make the design's colors vibrant.